CVE-2026-21228

Name: CVE-2026-21228
Creator: NVD / NIST
Published: 2026-02-10T18:16:23.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2026-21228 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.73%

49.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Microsoft	Azure Local	< 2510.0.3002

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21228Vendor Advisory

Timeline

Published: Feb 10, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-21228?

Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network.

How severe is CVE-2026-21228?

CVE-2026-21228 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2026-21228?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-21228?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST