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Vendor advisories

Security advisories from the vendors you use.

Search new and updated bulletins from Microsoft, Citrix, Cisco, Palo Alto Networks, Fortinet, Ivanti, Delinea, Ubuntu, and AWS. We keep each vendor's advisory ID, affected products, CVEs, severity, dates, and available fix guidance together.

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11Vendor sources
18,986Advisories collected
6,744Published or updated in 30 days
8,727Marked critical or high
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The original vendor bulletin remains the authority. SecurityAlert gives you one place to find it and compare the details vendors publish in different formats.

18,986 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-2026-23653
HighCVSS 5.7

GitHub Copilot and Visual Studio Code Information Disclosure Vulnerability

Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code allows an authorized attacker to disclose information over a network.

Affected productsMicrosoft Visual Studio Code CoPilot Chat Extension
Fixed versions0.37.3
Vendor guidance

Release Notes

CVE-2026-23653
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-20945
HighCVSS 4.6

Microsoft SharePoint Server Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition
Fixed versions16.0.5548.1003, 16.0.10417.20114, 16.0.19725.20210
Vendor guidance

Install KB5002861. Install KB5002862. Install KB5002854. Install KB5002856. Install KB5002853.

CVE-2026-20945
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-20930
HighCVSS 7.8

Windows Management Services Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services 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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060.

CVE-2026-20930
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-20928
HighCVSS 4.6

Windows Recovery Environment Security Feature Bypass Vulnerability

Improper removal of sensitive information before storage or transfer in Windows Recovery Environment Agent allows an unauthorized attacker to bypass a security feature with a physical attack.

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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5082198. Install KB5083768.

CVE-2026-20928
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-20806
HighCVSS 5.5

Windows COM Server Information Disclosure Vulnerability

Access of resource using incompatible type ('type confusion') in Windows COM allows an authorized attacker to disclose information locally.

Affected productsWindows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.28000.1836, 10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184
Vendor guidance

Install KB5083768. Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060.

CVE-2026-20806
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-0390
HighCVSS 6.7

UEFI Secure Boot Security Feature Bypass Vulnerability

Reliance on untrusted inputs in a security decision in Windows Boot Loader allows an authorized attacker to bypass a security feature 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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082198.

CVE-2026-0390
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2023-20585
HighCVSS 5.3

AMD: CVE-2023-20585 IOMMU Write Buffer Vulnerability

The vulnerability assigned to this CVE could lead to corruption of guest encrypted memory. The mitigation for this vulnerability requires a Windows update. This CVE is being documented in the Security Update Guide to announce that the latest builds of Windows enable the mitiga...

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows Server 2025
Fixed versions10.0.26100.32690, 10.0.26200.8246, 10.0.26100.8246
Vendor guidance

Install KB5082063. Install KB5083769.

CVE-2023-20585
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-32187
LowCVSS 0.0

Microsoft Edge (Chromium-based) Defense in Depth Vulnerability - Rejected

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to manipulate system operations in a specific manner.

Affected productsMicrosoft Edge (Chromium-based)
Fixed versions146.0.3856.84
Vendor guidance

Release Notes

CVE-2026-32187
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-33829
MediumCVSS 4.3

Windows Snipping Tool Spoofing Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to perform spoofing over a network.

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 versions10.0.17763.8644, 10.0.20348.5020, 10.0.19044.7184, 10.0.19045.7184
Vendor guidance

Install KB5082123. Install KB5082142. Install KB5082200. Install KB5082063. Install KB5083769. Install KB5082052. Install KB5082060. Install KB5083768. Install KB5082198. Install KB5082127. Install KB5082126.

CVE-2026-33829
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-21637
MediumCVSS 7.5

HackerOne: CVE-2026-21637 TLS PSK/ALPN Callback Exceptions Bypass Error Handlers

CVE-2026-21637 is regarding a vulnerability in Node.js TLS error handling allows remote attackers to crash or exhaust resources of a TLS server when pskCallback or ALPNCallback are in use. Synchronous exceptions thrown during these callbacks bypass standard TLS error handling ...

Affected productsMicrosoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10), Microsoft Visual Studio 2022 version 17.12, Microsoft Visual Studio 2022 version 17.14
Fixed versions16.11.55, 17.12.19, 17.14.30
Vendor guidance

Release Notes

CVE-2026-21637
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-5919
Severity not listed

Chromium: CVE-2026-5919 Insufficient validation of untrusted input in WebSockets

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 versions147.0.3912.60
Vendor guidance

Release Notes

CVE-2026-5919
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-5918
Severity not listed

Chromium: CVE-2026-5918 Inappropriate implementation in Navigation

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 versions147.0.3912.60
Vendor guidance

Release Notes

CVE-2026-5918
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-5915
Severity not listed

Chromium: CVE-2026-5915 Insufficient validation of untrusted input in WebML

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 versions147.0.3912.60
Vendor guidance

Release Notes

CVE-2026-5915
Read the vendor advisory Watch this product
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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