Vendor advisories

Microsoft Security Response Center

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

Current Checked 31 minutes 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.

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Microsoft Security Response CenterCVE-2026-72984
HighCVSS 8.8

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Edge (Chromium-based), Microsoft Edge for MAC, Microsoft Edge for Windows, Microsoft Edge for Android
Fixed versions152.0.4191.53, 152.0.4191.52
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-70341
HighCVSS 8.5

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

Affected productsMicrosoft Edge for iOS, Microsoft Edge for Android, Microsoft Edge for MAC, Microsoft Edge for Linux
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-66798
HighCVSS 4.3

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Edge for iOS, Microsoft Edge for MAC, Microsoft Edge for Linux, Microsoft Edge for Android
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-66324
HighCVSS 6.5

Microsoft Edge (Chromium-based) Spoofing Vulnerability

External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

Affected productsMicrosoft Edge for iOS, Microsoft Edge for MAC, Microsoft Edge for Android, Microsoft Edge for Linux
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-66323
HighCVSS 5.4

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Improper neutralization of parameter/argument delimiters in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Edge for Linux, Microsoft Edge for Android, Microsoft Edge for iOS, Microsoft Edge for MAC
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-65813
HighCVSS 6.5

Microsoft Exchange Server Elevation of Privilege Vulnerability

Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Affected productsMicrosoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14
Fixed versions15.02.2562.046, 15.01.2507.072, 15.02.1748.049, 15.02.1544.044
Vendor guidance

Install KB5121573. Install KB5121576. Install KB5121574. Install KB5121575.

Microsoft Security Response CenterCVE-2026-62904
MediumCVSS 5.4

Microsoft Edge (Chromium-based) Information Disclosure Vulnerability

Incorrect authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

Affected productsMicrosoft Edge for Android, Microsoft Edge for MAC, Microsoft Edge for Linux, Microsoft Edge for iOS
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-58616
MediumCVSS 4.4

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (Microsoft Edge) allows an authorized attacker to disclose information over a network.

Affected productsMicrosoft Edge for Android, Microsoft Edge for MAC, Microsoft Edge for iOS, Microsoft Edge for Linux
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-42993
HighCVSS 7.5

Remote Desktop Client Remote Code Execution Vulnerability

Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems
Fixed versions10.0.20348.5256, 10.0.19044.7417, 10.0.19045.7417, 10.0.26100.32995
Vendor guidance

Install KB5094128. Install KB5094127. Install KB5094125. Install KB5094126. Install KB5093998. Install KB5095051.

Microsoft Security Response CenterCVE-2026-50435
HighCVSS 7.8

Windows Overlay Filter Elevation of Privilege Vulnerability

Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535. Install KB5099444.

Microsoft Security Response CenterCVE-2026-68817
HighCVSS 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 productsOffice Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems
Fixed versions16.0.10417.20175, https://aka.ms/OfficeSecurityReleases, 16.112.26081010, 16.0.5565.1001
Vendor guidance

Click to Run Release Notes Install KB5002884. Install KB5002903.

Microsoft Security Response CenterCVE-2026-65779
HighCVSS 7.0

Windows Autopilot Elevation of Privilege Vulnerability

Use after free in Windows Autopilot allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems
Fixed versions10.0.26200.9168, 10.0.26200.9106, 10.0.26100.9168, 10.0.26100.9106
Vendor guidance

Install KB5121003. Install KB5120994. Install KB5121000.

Microsoft Security Response CenterCVE-2026-70329
HighCVSS 8.8

Microsoft Outlook Remote Code Execution Vulnerability

Integer overflow or wraparound in Microsoft Office Outlook 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 versionshttps://aka.ms/OfficeSecurityReleases, 16.0.5565.1000
Vendor guidance

Click to Run Install KB5002755.

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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