Vendor advisories

Microsoft Security Response Center

Browse 15,972 advisories from this official source. Search by product, CVE, severity, or advisory ID.

Current Checked 3 hours ago Checked every 6 hours

15,972 advisories

Each date says whether the vendor published or updated the bulletin. A vendor bulletin describes products that may be affected. It does not prove that the vulnerable product or version is installed in your environment.

RSS for these results
Microsoft Security Response CenterCVE-2026-0899
HighCVSS 8.8

Chromium: CVE-2026-0899 Out of bounds memory access in V8

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

Affected productsMicrosoft Edge (Chromium-based), cbl2 nodejs18 18.20.3-12 on CBL-Mariner 2.0
Fixed versions144.0.3719.82
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-81959
CriticalCVSS 7.8

Microsoft Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems
Fixed versions16.0.10417.20207, 16.0.20326.20140, 16.113.26091433, 16.0.14334.20906
Vendor guidance

Release Notes Install KB5002914. Install KB5002904.

Microsoft Security Response CenterCVE-2026-81955
CriticalCVSS 8.8

Windows Graphics Component Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems
Fixed versions16.0.10417.20207, 16.0.20326.20138, 16.113.26091433, 16.0.14334.20906
Vendor guidance

Release Notes Install KB5002916. Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5122874. Install KB5123065. Install KB512...

Microsoft Security Response CenterCVE-2026-81953
CriticalCVSS 7.8

Microsoft Excel Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems
Fixed versions16.0.10417.20207, 16.0.20326.20138, 16.113.26091433, 16.0.14334.20906
Vendor guidance

Release Notes Install KB5002914. Install KB5002904.

Microsoft Security Response CenterCVE-2026-81952
CriticalCVSS 8.8

Microsoft Word Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft 365 Apps for Enterprise for 32-bit Systems
Fixed versions16.113.26091433, 16.0.20326.20138, 16.0.5569.1003, 16.0.10417.20207
Vendor guidance

Release Notes Install KB5002916.

Microsoft Security Response CenterCVE-2026-81950
CriticalCVSS 7.8

Microsoft Excel Remote Code Execution Vulnerability

Double free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems
Fixed versions16.0.10417.20207, 16.0.20326.20138, 16.113.26091433, 16.0.14334.20906
Vendor guidance

Release Notes Install KB5002914. Install KB5002904.

Before you act

Start with the vendor's bulletin.

We normalize the fields that vendors publish so you can search and compare advisories in one place. We do not replace the original bulletin or turn a product-name match into proof that a system is vulnerable.

Confirm the installed product and version, read the linked vendor guidance, and test the recommended update or mitigation through your normal change process.

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