msrc_CVE-2026-21537

csafUSmsrc_csaf

Microsoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability

view advisory published 2026-02-10

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-21537US——
Improper control of generation of code ('code injection') in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network.
02

references

External citations — patches, advisories, analysis.

03

remediations (1)

scry

Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.

Free scan