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.
6,370 results · page 10 of 128
Oct 13, 2026Improper access control in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.CVE-2026-83837 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper access control in Windows Kernel-Mode Drivers 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.
Oct 13, 2026Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code locally.CVE-2026-83836 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Event Tracing 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.
Oct 13, 2026Buffer over-read in Windows Common Log File System Driver allows an authorized attacker to disclose information locally.CVE-2026-83835 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Buffer over-read in Windows Common Log File System Driver allows an authorized 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.
Oct 13, 2026Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.CVE-2026-83834 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Kernel-Mode Drivers 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.
Oct 13, 2026Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-83833 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Kernel 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.
Oct 13, 2026Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.CVE-2026-83832 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.CVE-2026-83830 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows COM+ Event System Service 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.
Oct 13, 2026Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.CVE-2026-83829 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Microsoft Windows Search Component 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.
Oct 13, 2026Heap-based buffer overflow in Windows Bluetooth Port Driver allows an authorized attacker to elevate privileges locally.CVE-2026-83827 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Heap-based buffer overflow in Windows Bluetooth Port 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.
Oct 13, 2026Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.CVE-2026-83798 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.CVE-2026-83797 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows IKE Extension allows an unauthorized attacker to deny service over a network.CVE-2026-83795 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Heap-based buffer overflow in Windows IKE Extension 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.
Oct 13, 2026Out-of-bounds read in Windows Portable Device MTP Driver allows an authorized attacker to disclose information locally.CVE-2026-83794 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Out-of-bounds read in Windows Portable Device MTP Driver allows an authorized 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.
Oct 13, 2026Improper link resolution before file access ('link following') in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locallCVE-2026-83793 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Improper link resolution before file access ('link following') in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Incorrect authorization in Windows Device Install Service allows an authorized attacker to elevate privileges locally.CVE-2026-83792 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Incorrect authorization in Windows Device Install Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges locally.CVE-2026-83791 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.CVE-2026-83790 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.CVE-2026-83789 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Windows SMB 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.
Oct 13, 2026Buffer over-read in Windows RNDIS allows an unauthorized attacker to disclose information with a physical attack.CVE-2026-83788 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.6
Buffer over-read in Windows RNDIS 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.
Oct 13, 2026Insufficient verification of data authenticity in Windows DHCP Server allows an authorized attacker to bypass a security feature locally.CVE-2026-83787 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Insufficient verification of data authenticity in Windows DHCP Server allows an authorized attacker to bypass a security feature locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Generation of error message containing sensitive information in Windows NTFS allows an authorized attacker to disclose information locally.CVE-2026-83786 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.7
Generation of error message containing sensitive information in Windows NTFS allows an authorized 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.
Oct 13, 2026Use after free in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.CVE-2026-83785 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows COM+ Event System Service 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.
Oct 13, 2026Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges over a network.CVE-2026-83784 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized 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.
Oct 13, 2026Heap-based buffer overflow in Windows Management Instrumentation allows an authorized attacker to elevate privileges locally.CVE-2026-83783 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Management Instrumentation 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.
Oct 13, 2026Heap-based buffer overflow in Windows Shell allows an unauthorized attacker to execute code over a network.CVE-2026-83782 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Heap-based buffer overflow in Windows Shell 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.
Oct 13, 2026Use after free in Windows CCFFilter Driver allows an unauthorized attacker to execute code over a network.CVE-2026-83780 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Use after free in Windows CCFFilter Driver 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.
Oct 13, 2026Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-83779 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Installer 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.
Oct 13, 2026Heap-based buffer overflow in Microsoft Internet Messaging API allows an unauthorized attacker to execute code over a network.CVE-2026-83778 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Internet Messaging API 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.
Oct 13, 2026Heap-based buffer overflow in Windows Bluetooth Service allows an unauthorized attacker to elevate privileges over an adjacent network.CVE-2026-83777 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Windows Bluetooth Service allows an unauthorized attacker to elevate privileges over an adjacent network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Bluetooth Driver allows an unauthorized attacker to elevate privileges with a physical attack.CVE-2026-83776 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.8
Out-of-bounds read in Microsoft Bluetooth 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.
Oct 13, 2026Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to elevate privilCVE-2026-83775 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer 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.
Oct 13, 2026Exposure of sensitive system information to an unauthorized control sphere in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose informatiCVE-2026-83774 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.7
Exposure of sensitive system information to an unauthorized control sphere in Windows Win32 Kernel Subsystem allows an authorized 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.
Oct 13, 2026Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.CVE-2026-83770 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Heap-based buffer overflow in Windows Text Shaping 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.
Oct 13, 2026Use after free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.CVE-2026-83769 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-83768 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-83767 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Stack-based buffer overflow in Windows Installer 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.
Oct 13, 2026Incorrect authorization in Windows Hyper-V allows an authorized attacker to bypass a security feature over an adjacent network.CVE-2026-83766 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.2
Incorrect authorization in Windows Hyper-V allows an authorized attacker to bypass a security feature over an adjacent network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.CVE-2026-83765 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Out-of-bounds read in Windows DWM Core Library allows an authorized 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.
Oct 13, 2026Incorrect authorization in Windows Clipboard User Service allows an authorized attacker to disclose information locally.CVE-2026-83764 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Incorrect authorization in Windows Clipboard User Service allows an authorized 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.
Oct 13, 2026Access of resource using incompatible type ('type confusion') in Windows Input System allows an authorized attacker to elevate privileges locally.CVE-2026-83763 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Access of resource using incompatible type ('type confusion') in Windows Input System allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.CVE-2026-83762 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.CVE-2026-83761 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Bluetooth Driver allows an authorized attacker to disclose information locally.CVE-2026-83760 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Out-of-bounds read in Microsoft Bluetooth Driver allows an authorized 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.
Oct 13, 2026Improper control of generation of code ('code injection') in Windows Encrypting File System (EFS) allows an authorized attacker to execute code over a network.CVE-2026-83759 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Improper control of generation of code ('code injection') in Windows Encrypting File System (EFS) allows an authorized 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.
Oct 13, 2026Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to execute code locally.CVE-2026-83758 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Error Reporting allows an authorized 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.
Oct 13, 2026Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.CVE-2026-83756 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use of uninitialized resource in Windows Win32K allows an authorized attacker to disclose information locally.CVE-2026-83755 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Use of uninitialized resource in Windows Win32K allows an authorized 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.
Oct 13, 2026Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.CVE-2026-83754 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Camera Frame Server Monitor allows an authorized attacker to elevate privileges locally.CVE-2026-83753 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Camera Frame Server Monitor allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-83752 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Installer 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.
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.
Weekly security brief
The flaws that hit local websites, every Friday.
One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.
Tell us what you're building.
A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.
Not ready to talk yet? Run the free website check and see what Google sees.