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Cyber Security Agency of Singapore
Monthly Patch

February 2026 Monthly Patch

11 February 2026

Microsoft has released security patches to address multiple vulnerabilities in their software and products.

Microsoft has released security patches to address multiple vulnerabilities in their software and products.

The vulnerabilities that have been classified as Critical in severity are listed in the table below.

For the full list of security patches released by Microsoft, please refer to https://msrc.microsoft.com/update-guide/en-us/releaseNote/2026-Feb (opens in new tab)

Critical Vulnerabilities

CVE Number

CVE Name

Base Score

Reference

CVE-2026-24300

Azure Front Door Elevation of Privilege Vulnerability

9.8

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-24300 (opens in new tab)

CVE-2026-24302

Azure Arc Elevation of Privilege Vulnerability

8.6

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-24302 (opens in new tab)

CVE-2026-21532

Azure Function Information Disclosure Vulnerability

8.2

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-21532 (opens in new tab)

CVE-2026-21522

Microsoft ACI Confidential Containers Elevation of Privilege Vulnerability

6.7

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-21522 (opens in new tab)

CVE-2026-23655

Microsoft ACI Confidential Containers Information Disclosure Vulnerability

6.5

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-23655 (opens in new tab)