CVE-2026-21228
Azure Local Remote Code Execution Vulnerability
Description
Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network.
INFO
Published Date :
Feb. 10, 2026, 6:16 p.m.
Last Modified :
Feb. 25, 2026, 2:20 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Azure Local to the latest secure version.
- Apply security patches for certificate validation.
- Validate all network-facing service certificates.
- Monitor for unauthorized access attempts.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-21228.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21228 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-21228 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-21228
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-21228 vulnerability anywhere in the article.
-
Zero Day Initiative
The February 2026 Security Update Review
I have survived the biggest Pwn2Own ever, but I’m back in Tokyo for the second Patch Tuesday of 2026. My location never stops Patch Tuesday from coming, so let’s take a look at the latest security pat ... Read more
The following table lists the changes that have been made to the
CVE-2026-21228 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 25, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:microsoft:azure_local:*:*:*:*:*:*:*:* versions up to (excluding) 2510.0.3002 Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21228 Types: Vendor Advisory -
New CVE Received by [email protected]
Feb. 10, 2026
Action Type Old Value New Value Added Description Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-295 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21228