Updated 8 h ago

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.

1,762exploited flaws on CISA’s list

34added in the last 30 days

343new WordPress flaws this week

390,080entries in the database

11,865 results · page 5 of 238

Oct 13, 2026Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.CVE-2026-97799 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.
Product
Windows 11 Version 24H2
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Improper neutralization of argument delimiters in a command ('argument injection') in Windows Error Reporting allows an authorized attacker to elevate privilegeCVE-2026-97798 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper neutralization of argument delimiters in a command ('argument injection') in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
Product
Windows 10 Version 21H2
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.CVE-2026-97794 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
Product
Windows 11 version 23H2
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Missing authentication for critical function in Windows Setup and Deployment allows an authorized attacker to elevate privileges locally.CVE-2026-97793 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Missing authentication for critical function in Windows Setup and Deployment allows an authorized attacker to elevate privileges locally.
Product
Windows 10 Version 1809
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.CVE-2026-97792 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
Product
Windows 11 version 23H2
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to peCVE-2026-97790 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to perform tampering locally.
Product
Windows 11 Version 24H2
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.CVE-2026-97789 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Use after free in Remote Desktop Client 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.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Observable discrepancy in Active Directory Federation Services (AD FS) allows an unauthorized attacker to disclose information over a network.CVE-2026-97788 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Observable discrepancy in Active Directory Federation Services (AD FS) allows an unauthorized attacker to disclose information over a network.
Product
Microsoft .NET Framework 3.5
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform sCVE-2026-97783 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.1
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Observable discrepancy in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.CVE-2026-97782 · Email & office · Microsoft · reported by secure@microsoft.comMedium 6.8
Observable discrepancy in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.
Product
Microsoft SharePoint Server Subscription Edition
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-97760 · 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.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.CVE-2026-97759 · 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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
Oct 13, 2026Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information locally.CVE-2026-97744 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Out-of-bounds read in Microsoft Office PowerPoint 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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com
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.
Full record and what to do →NVD record msrc.microsoft.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Vulnerability database

The flaws that hit local websites, every Friday.

Tell us what you're building.