Vendor advisories

Microsoft Security Response Center

Browse 17,705 advisories from this official source. Search by product, CVE, severity, or advisory ID.

Current Checked 3 hours ago Checked every 6 hours

17,705 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.

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Microsoft Security Response CenterCVE-2026-12460
Severity not listed

Chromium: CVE-2026-12460 Insufficient policy enforcement in File System Access

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)
Fixed versions149.0.4022.80
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-12459
Severity not listed

Chromium: CVE-2026-12459 Inappropriate implementation in Serial

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)
Fixed versions149.0.4022.80
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-12457
Severity not listed

Chromium: CVE-2026-12457 Insufficient data validation in Extensions

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)
Fixed versions149.0.4022.80
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-12456
Severity not listed

Chromium: CVE-2026-12456 Insufficient validation of untrusted input in Extensions

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)
Fixed versions149.0.4022.80
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-12453
Severity not listed

Chromium: CVE-2026-12453 Insufficient validation of untrusted input in Input

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)
Fixed versions149.0.4022.80
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-12446
Severity not listed

Chromium: CVE-2026-12446 Insufficient data validation in Passwords

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)
Fixed versions149.0.4022.80
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-45474
CriticalCVSS 8.4

Microsoft Office Remote Code Execution Vulnerability

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Office 365 for Mac, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems
Fixed versions16.110.26061317, https://aka.ms/OfficeSecurityReleases, 16.0.20131.20024, 16.0.5556.1005
Vendor guidance

Release Notes Click to Run Install KB5002878.

Microsoft Security Response CenterCVE-2026-45472
CriticalCVSS 8.4

Microsoft Office Remote Code Execution Vulnerability

Use after free in Microsoft Office 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 versionshttps://aka.ms/OfficeSecurityReleases, 16.110.26061317, 16.0.5556.1005, 16.0.20131.20024
Vendor guidance

Click to Run Release Notes Install KB5002878.

Microsoft Security Response CenterCVE-2026-45463
CriticalCVSS 8.4

Microsoft Office Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Office 365 for Mac, Microsoft Office for Android, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions
Fixed versions16.110.26061317, 16.0.20131.20024, https://aka.ms/OfficeSecurityReleases, 16.0.5556.1005
Vendor guidance

Release Notes Click to Run Install KB5002878.

Microsoft Security Response CenterCVE-2026-45461
CriticalCVSS 8.4

Microsoft Office Remote Code Execution Vulnerability

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Affected productsMicrosoft Office for Android, Microsoft Office 365 for Mac, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions
Fixed versions16.0.20131.20024, 16.110.26061317, https://aka.ms/OfficeSecurityReleases, 16.0.5556.1005
Vendor guidance

Release Notes Click to Run Install KB5002878.

Microsoft Security Response CenterCVE-2026-45460
CriticalCVSS 4.7

Microsoft Office Information Disclosure Vulnerability

Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.

Affected productsMicrosoft Office for Android, Microsoft Office 365 for Mac, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions
Fixed versions16.0.20131.20024, 16.110.26061317, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes Click to Run

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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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