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.
756 results · page 4 of 16
Oct 13, 2026Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.CVE-2026-105596 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office Access 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 Access allows an unauthorized attacker to execute code over a network.CVE-2026-105595 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Out-of-bounds read in Microsoft Office Access 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 Access allows an unauthorized attacker to execute code over a network.CVE-2026-105593 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office Access 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 Access allows an unauthorized attacker to execute code over a network.CVE-2026-105592 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Heap-based buffer overflow in Microsoft Office Access 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 Access allows an unauthorized attacker to execute code over a network.CVE-2026-105591 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office Access 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 Word allows an unauthorized attacker to disclose information over a network.CVE-2026-102867 · 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, 2026Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network.CVE-2026-102857 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office Visio 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 Visio allows an unauthorized attacker to execute code over a network.CVE-2026-102856 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office Visio 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 Access allows an unauthorized attacker to execute code over a network.CVE-2026-102850 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office Access 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 Access allows an unauthorized attacker to execute code over a network.CVE-2026-102849 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Office Access 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-2026-100212 · 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-2026-100211 · 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-2026-100210 · 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-2026-100209 · 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.
Sep 25, 2026Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.CVE-2026-100208 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Integer overflow or wraparound 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.
Sep 23, 2026Microsoft Office Outlook Remote Code Execution VulnerabilityCVE-2026-70125 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Microsoft Office Outlook Remote Code Execution Vulnerability
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 8, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-85875 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
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.
Sep 8, 2026Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.CVE-2026-83951 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Buffer over-read in Microsoft Office Word 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.
Sep 8, 2026Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.CVE-2026-83949 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Buffer over-read in Microsoft Office Word 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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81960 · 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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81959 · 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.
Sep 8, 2026Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-81958 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Use of uninitialized resource 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.
Sep 8, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81957 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Out-of-bounds read 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.
Sep 8, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81956 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Out-of-bounds read 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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.CVE-2026-81955 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Microsoft Graphics Component 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.
Sep 8, 2026Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81954 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free 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.
Sep 8, 2026Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81953 · 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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-81952 · 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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81951 · 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.
Sep 8, 2026Double free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81950 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Double free 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.
Sep 8, 2026Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81949 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Integer overflow or wraparound 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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81948 · 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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81947 · 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.
Sep 8, 2026Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-81401 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Access of resource using incompatible type ('type confusion') 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.
Sep 8, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-81400 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
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.
Sep 8, 2026Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-81399 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Buffer over-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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81398 · 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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81397 · 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.
Sep 8, 2026Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81396 · 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.
Sep 8, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-81395 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
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.
Sep 8, 2026Exposure of sensitive system information to an unauthorized control sphere in Microsoft Office Excel allows an unauthorized attacker to disclose information locCVE-2026-81394 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Exposure of sensitive system information to an unauthorized control sphere 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.
Sep 8, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-81393 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
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.
Sep 8, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-81392 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
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.
Sep 8, 2026Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-81391 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Use of uninitialized resource 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.
Sep 8, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-81390 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81389 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
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.
Sep 8, 2026Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81388 · 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.
Sep 8, 2026Exposure of sensitive system information to an unauthorized control sphere in Microsoft Office Excel allows an unauthorized attacker to disclose information locCVE-2026-81387 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Exposure of sensitive system information to an unauthorized control sphere 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.
Sep 8, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-81386 · 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.
Sep 8, 2026Deserialization of untrusted data in Microsoft Office Publisher allows an unauthorized attacker to execute code over a network.CVE-2026-81385 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Deserialization of untrusted data in Microsoft Office Publisher 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.
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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