Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
17,619 results · page 94 of 353
Jul 14, 2026Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-55899 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.CVE-2026-55012 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.
- Product
- Microsoft Malware Protection Engine
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally.CVE-2026-55011 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally.
- Product
- Microsoft Malware Protection Engine
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoCVE-2026-55008 · Email & office · Microsoft · reported by secure@microsoft.comCritical 9.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
- Product
- Microsoft Exchange Server 2016 Cumulative Update 23
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.CVE-2026-55003 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Use after free in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.CVE-2026-55000 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.4
Use after free in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code ovCVE-2026-54999 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over an adjacent network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.CVE-2026-54995 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.CVE-2026-54993 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally.CVE-2026-54992 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.CVE-2026-54990 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-54988 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.1
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Stack-based buffer overflow in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.CVE-2026-54983 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Stack-based buffer overflow in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.CVE-2026-54982 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.CVE-2026-54132 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.8
Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.CVE-2026-54127 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.4
Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally.CVE-2026-54122 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Loop with unreachable exit condition ('infinite loop') in Windows Active Directory allows an unauthorized attacker to deny service over a network.CVE-2026-54119 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Loop with unreachable exit condition ('infinite loop') in Windows Active Directory allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.CVE-2026-54118 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft SQL Server 2016 Service Pack 3 (GDR)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.CVE-2026-54117 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft SQL Server 2025 (CU 6)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Exposure of sensitive information to an unauthorized actor in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.CVE-2026-50697 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Exposure of sensitive information to an unauthorized actor in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized attacker to deny service over a network.CVE-2026-50696 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Heap-based buffer overflow in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.CVE-2026-50695 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.CVE-2026-50694 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-50678 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.6
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-50675 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Relative path traversal in Age of Empires II: Definitive Edition Game allows an unauthorized attacker to execute code over a network.CVE-2026-50663 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Relative path traversal in Age of Empires II: Definitive Edition Game allows an unauthorized attacker to execute code over a network.
- Product
- Age of Empires II: Definitive Edition Game
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Loop with unreachable exit condition ('infinite loop') in Azure Active Directory allows an unauthorized attacker to deny service over a network.CVE-2026-50653 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Loop with unreachable exit condition ('infinite loop') in Azure Active Directory allows an unauthorized attacker to deny service over a network.
- Product
- Azure Active Directory
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.CVE-2026-50652 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.
- Product
- Azure Active Directory
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of special elements used in a command ('command injection') in Visual Studio Code allows an unauthorized attacker to execute code locallCVE-2026-50520 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Improper neutralization of special elements used in a command ('command injection') in Visual Studio Code allows an unauthorized attacker to execute code locally.
- Product
- Visual Studio Code
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.CVE-2026-50506 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
- Product
- AspNet.OData
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Exposure of sensitive information to an unauthorized actor in Windows Trusted Runtime Interface Driver allows an authorized attacker to disclose information locCVE-2026-50350 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Exposure of sensitive information to an unauthorized actor in Windows Trusted Runtime Interface Driver allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Integer underflow (wrap or wraparound) in Windows NTFS allows an unauthorized attacker to execute code locally.CVE-2026-50308 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Integer underflow (wrap or wraparound) in Windows NTFS allows an unauthorized attacker to execute code locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to execute code with a physical attack.CVE-2026-50299 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.8
Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to execute code with a physical attack.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Integer overflow or wraparound in Windows Spaceport.sys allows an unauthorized attacker to elevate privileges with a physical attack.CVE-2026-50298 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.8
Integer overflow or wraparound in Windows Spaceport.sys allows an unauthorized attacker to elevate privileges with a physical attack.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Exposure of sensitive system information to an unauthorized control sphere in Windows Kernel allows an unauthorized attacker to disclose information locally.CVE-2026-50294 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.2
Exposure of sensitive system information to an unauthorized control sphere in Windows Kernel allows an unauthorized attacker to disclose information locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Exposure of sensitive information to an unauthorized actor in Windows DirectX allows an unauthorized attacker to disclose information locally.CVE-2026-49807 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.2
Exposure of sensitive information to an unauthorized actor in Windows DirectX allows an unauthorized attacker to disclose information locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a physical attack.CVE-2026-49804 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.6
Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a physical attack.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.CVE-2026-49798 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.3
Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.CVE-2026-49797 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally.CVE-2026-49796 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.CVE-2026-49794 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.6
Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Allocation of resources without limits or throttling in HTTP/2 allows an unauthorized attacker to deny service over a network.CVE-2026-49788 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Allocation of resources without limits or throttling in HTTP/2 allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Allocation of resources without limits or throttling in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.CVE-2026-49787 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Allocation of resources without limits or throttling in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.CVE-2026-49184 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Integer underflow (wrap or wraparound) in Windows DHCP Client allows an unauthorized attacker to elevate privileges over a network.CVE-2026-49181 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Integer underflow (wrap or wraparound) in Windows DHCP Client allows an unauthorized attacker to elevate privileges over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network.CVE-2026-49172 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to elevate privileges with a physical attack.CVE-2026-49168 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.8
Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to elevate privileges with a physical attack.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Heap-based buffer overflow in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.CVE-2026-49164 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Heap-based buffer overflow in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to execute CVE-2026-48561 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.6
Improper neutralization of special elements used in a command ('command injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft Edge Copilot for Android
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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