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.
29,208 results · page 18 of 585
Oct 13, 2026Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.CVE-2026-88198 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
- Product
- Microsoft SharePoint Server Subscription Edition
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.CVE-2026-88197 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.CVE-2026-88196 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-88195 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-88192 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-88190 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-88186 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-88185 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-88184 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.CVE-2026-88183 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.CVE-2026-88178 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-88175 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.CVE-2026-88173 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Use after free in Windows Background Intelligent Transfer Service (BITS) 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, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-88172 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Double free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.CVE-2026-88171 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Double free in Windows DHCP Server 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, 2026Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.CVE-2026-88169 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.CVE-2026-88167 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Integer overflow or wraparound in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.CVE-2026-88166 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Integer overflow or wraparound in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Product
- Microsoft SharePoint Server Subscription Edition
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds write in Active Directory Domain Services allows an authorized attacker to execute code over a network.CVE-2026-88165 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Out-of-bounds write in Active Directory Domain Services 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, 2026Integer overflow or wraparound in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.CVE-2026-88163 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Integer overflow or wraparound in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Product
- Microsoft SharePoint Server Subscription Edition
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.CVE-2026-88159 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free in Windows Background Intelligent Transfer Service (BITS) 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 OpenSSH for Windows allows an unauthorized attacker to execute code over a network.CVE-2026-88157 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
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, 2026Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.CVE-2026-88156 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.CVE-2026-88155 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Product
- Microsoft SharePoint Server Subscription Edition
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-88154 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-88153 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-88151 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use of uninitialized resource in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-88150 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use of uninitialized resource in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-88145 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.CVE-2026-88144 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.CVE-2026-88142 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free in Windows Background Intelligent Transfer Service (BITS) 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, 2026Files or directories accessible to external parties in WebDAV allows an authorized attacker to disclose information over a network.CVE-2026-88137 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Files or directories accessible to external parties in WebDAV allows an authorized 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.
Oct 13, 2026Improper resolution of path equivalence in WebDAV allows an authorized attacker to execute code over a network.CVE-2026-88136 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Improper resolution of path equivalence in WebDAV 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, 2026Origin validation error in Azure Key Vault allows an unauthorized attacker to disclose information over a network.CVE-2026-88132 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.9
Origin validation error in Azure Key Vault allows an unauthorized attacker to disclose information over a network.
- Product
- azure-keyvault-administration
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.CVE-2026-88130 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.
- Product
- Windows Server 2012
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.CVE-2026-88129 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.
- Product
- Windows Server 2012
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.CVE-2026-88125 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.
- Product
- Windows Server 2012
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.CVE-2026-88123 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.
- Product
- Windows Server 2012
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.CVE-2026-88122 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in DNS Server allows an authorized attacker to deny service over a network.
- Product
- Windows Server 2012
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.CVE-2026-88121 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8
Use after free in Windows Background Intelligent Transfer Service (BITS) 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 DHCP Server allows an unauthorized attacker to execute code over a network.CVE-2026-88120 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
- Product
- Windows Server 2012
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.CVE-2026-88119 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
- Product
- Windows Server 2012
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.CVE-2026-88117 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
- Product
- Windows Server 2012
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Untrusted pointer dereference in DNS Server allows an unauthorized attacker to execute code over a network.CVE-2026-88116 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Untrusted pointer dereference in DNS Server 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, 2026Out-of-bounds read in Windows Server for NFS allows an unauthorized attacker to execute code over a network.CVE-2026-88115 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Out-of-bounds read in Windows Server for NFS 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, 2026Untrusted pointer dereference in DNS Server allows an unauthorized attacker to execute code over a network.CVE-2026-88114 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Untrusted pointer dereference in DNS Server 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, 2026Untrusted pointer dereference in DNS Server allows an unauthorized attacker to execute code over a network.CVE-2026-88112 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Untrusted pointer dereference in DNS Server 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 Failover Cluster allows an unauthorized attacker to execute code over a network.CVE-2026-88102 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.
- Product
- Windows Server 2019
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.CVE-2026-88099 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.9
Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
- Product
- Windows Server 2019
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to perform tampering over a netCVE-2026-88092 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.4
Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to perform tampering over a network.
- Product
- ASP.NET Core 10.0
- 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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