Home

Description

Improper control of generation of code ('code injection') in Microsoft Defender for Linux allows an unauthorized attacker to execute code over an adjacent network.

PUBLISHED Reserved 2025-12-30 | Published 2026-02-10 | Updated 2026-02-23 | Assigner microsoft




HIGH: 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-94: Improper Control of Generation of Code ('Code Injection')

Product status

101.0.0 (custom) before 1.0.9.0
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21537 (Microsoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability) vendor-advisory patch

cve.org (CVE-2026-21537)

nvd.nist.gov (CVE-2026-21537)

Download JSON