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.
11,315 results · page 10 of 227
Oct 13, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97758 · 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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97757 · 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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97756 · 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, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97755 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Out-of-bounds read 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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97754 · 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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97753 · 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 Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97752 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free 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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97751 · 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, 2026Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97750 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Stack-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, 2026Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.CVE-2026-97749 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Double free 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 Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97748 · 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 Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97747 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free 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, 2026Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97746 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Integer underflow (wrap or wraparound) 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 Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97745 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free 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 Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-97743 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Use after free 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, 2026Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97742 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Stack-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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97741 · 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, 2026Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97739 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Integer underflow (wrap or wraparound) 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 Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97738 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free 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 Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97017 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free 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, 2026Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.CVE-2026-97016 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Heap-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, 2026Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.CVE-2026-97012 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
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, 2026Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97011 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use of uninitialized resource 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 Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97010 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free 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, 2026Buffer underwrite ('buffer underflow') in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97008 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Buffer underwrite ('buffer underflow') 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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97007 · 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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97004 · 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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97003 · 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, 2026Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.CVE-2026-96960 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.
- Product
- Microsoft .NET Framework 3.5
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network.CVE-2026-96959 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network.
- Product
- Microsoft .NET Framework 3.5
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.CVE-2026-96958 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
- Product
- Microsoft .NET Framework 3.5
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.CVE-2026-96957 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
- Product
- .NET 10.0 runtime
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.CVE-2026-96952 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Windows Media Foundation 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, 2026Uncaught exception in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.CVE-2026-96945 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
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, 2026Integer overflow or wraparound in Windows Raw Image Extension allows an unauthorized attacker to execute code over a network.CVE-2026-96943 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Integer overflow or wraparound in Windows Raw Image Extension allows an unauthorized attacker to execute code over a network.
- Product
- Raw Image Extension
- 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-2026-96934 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Use after 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, 2026Untrusted pointer dereference in Windows OLE allows an unauthorized attacker to execute code over a network.CVE-2026-96924 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Untrusted pointer dereference in Windows OLE 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 BitLocker allows an unauthorized attacker to execute code over a network.CVE-2026-96909 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Heap-based buffer overflow in Windows BitLocker allows an unauthorized attacker to execute code over a network.
- Product
- Windows 11 version 23H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Network Device Enrollment Service (NDES) allows an unauthorized attacker to deny service over a network.CVE-2026-96866 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Out-of-bounds read in Network Device Enrollment Service (NDES) 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, 2026Double free in Microsoft Failover Cluster Virtual Driver allows an unauthorized attacker to execute code over a network.CVE-2026-96864 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Double free in Microsoft Failover Cluster Virtual 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, 2026Out-of-bounds read in Network Device Enrollment Service (NDES) allows an unauthorized attacker to deny service over a network.CVE-2026-96861 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Out-of-bounds read in Network Device Enrollment Service (NDES) 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, 2026Integer underflow (wrap or wraparound) in Microsoft Bluetooth Driver allows an authorized attacker to elevate privileges over an adjacent network.CVE-2026-96844 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8
Integer underflow (wrap or wraparound) in Microsoft Bluetooth Driver allows an authorized 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, 2026Missing reference to active allocated resource in Windows SMB Server allows an unauthorized attacker to deny service over a network.CVE-2026-96325 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Missing reference to active allocated resource in Windows SMB Server 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, 2026Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network.CVE-2026-96320 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Heap-based buffer overflow 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, 2026Improper authorization in Windows Network List Service allows an authorized attacker to perform tampering locally.CVE-2026-96311 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Improper authorization in Windows Network List Service allows an authorized attacker to perform tampering locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improperly implemented security check for standard in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature over a network.CVE-2026-96303 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Improperly implemented security check for standard in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature over a network.
- Product
- PowerShell 7.4
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Uncontrolled resource consumption in RPC Endpoint Mapper Service allows an unauthorized attacker to deny service over a network.CVE-2026-96300 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.9
Uncontrolled resource consumption in RPC Endpoint Mapper Service 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, 2026Reliance on untrusted inputs in a security decision in Microsoft PowerShell allows an unauthorized attacker to execute code over a network.CVE-2026-96251 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Reliance on untrusted inputs in a security decision in Microsoft PowerShell allows an unauthorized attacker to execute code over a network.
- Product
- PowerShell 7.4
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Stack-based buffer overflow in Windows Host Guardian Service allows an unauthorized attacker to deny service over a network.CVE-2026-96248 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Stack-based buffer overflow in Windows Host Guardian Service 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 Network Policy Server (NPS) allows an unauthorized attacker to disclose information over a network.CVE-2026-96246 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Out-of-bounds read in Network Policy Server (NPS) 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.
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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