Microsoft Defender for Endpoint Linux Extension Remote Code Execution Vulnerability (Microsoft Microsoft Defender for Endpoint for Linux)

CVE-2026-21537
HIGH 8.8

At a glance

Source
NVD
EPSS
EPSS 0.53 % · percentile 45 ()
State
PUBLISHED
Published
Updated
Assigner
microsoft
NVD status
Analyzed

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.

Weaknesses (CWE)

  • CWE-94 — Improper Control of Generation of Code

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 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:Cmicrosoft
CVSS 3.1HIGH 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · secure@microsoft.com (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Microsoft · Microsoft Defender for Endpoint for Linuxaffected 101.0.0 < 1.0.9.0

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD