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 1 of 16
Oct 15, 2026Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.CVE-2026-108455 · 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 15, 2026Buffer over-read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.CVE-2026-108454 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Buffer over-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 15, 2026Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.CVE-2026-108453 · 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 15, 2026Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108451 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Numeric truncation error 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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108450 · 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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108449 · 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 15, 2026Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.CVE-2026-108448 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108447 · 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 15, 2026Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-108446 · 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 15, 2026Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108445 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Stack-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 15, 2026Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.CVE-2026-108444 · 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 15, 2026Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108443 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Off-by-one error 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 15, 2026Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108442 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Use after free 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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108441 · 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 15, 2026Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108440 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Stack-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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108439 · 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 15, 2026Use after free in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.CVE-2026-108438 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Use after free 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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108437 · 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 15, 2026Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.CVE-2026-108436 · 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 15, 2026Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.CVE-2026-108435 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Untrusted pointer dereference 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 15, 2026Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.CVE-2026-108434 · 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 15, 2026Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.CVE-2026-108433 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.
- Product
- Microsoft 365 Apps for Enterprise
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108432 · 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 15, 2026Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108431 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Stack-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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108430 · 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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108429 · 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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108428 · 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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108427 · 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 15, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.CVE-2026-108426 · 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 Visio allows an unauthorized attacker to execute code over a network.CVE-2026-102855 · 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, 2026Improper neutralization of special elements used in a command ('command injection') in Microsoft Office OneNote allows an unauthorized attacker to execute code CVE-2026-97781 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Improper neutralization of special elements used in a command ('command injection') in Microsoft Office OneNote 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-2026-97780 · 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 disclose information over a network.CVE-2026-97779 · 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, 2026Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97778 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Integer overflow 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, 2026Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97777 · 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-2026-97776 · 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-2026-97775 · 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, 2026Time-of-check time-of-use (toctou) race condition in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.CVE-2026-97774 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Time-of-check time-of-use (toctou) race condition in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.
- 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-2026-97773 · 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, 2026Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97772 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Double 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-2026-97771 · 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, 2026Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97770 · 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-2026-97769 · 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-2026-97768 · 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, 2026Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97767 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Double 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-2026-97766 · 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-2026-97765 · 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-2026-97763 · 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 write in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97762 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Out-of-bounds write 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-2026-97761 · 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.
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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