CVE-2025-59497: high-severity vulnerability in Microsoft Defender for Endpoint for Linux
Microsoft Defender for Linux Denial of Service Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7epss 0.2%
Time-of-check time-of-use (toctou) race condition in Microsoft Defender for Linux allows an authorized attacker to deny service locally.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Microsoft Defender for Endpoint for LinuxRelated CVEs — Microsoft Defender for Endpoint for Linux
In the same product, most dangerous first.
CVE-2022-23278MEDIUMMicrosoft Defender for Endpoint Spoofing VulnerabilityEPSS 1.9%CVE-2022-33637MEDIUMMicrosoft Defender for Endpoint Tampering VulnerabilityEPSS 1.7%CVE-2025-47161HIGHMicrosoft Defender for Endpoint Elevation of Privilege VulnerabilityEPSS 0.8%CVE-2024-43614MEDIUMMicrosoft Defender for Endpoint for Linux Spoofing VulnerabilityEPSS 0.6%CVE-2026-21537HIGHMicrosoft Defender for Endpoint Linux Extension Remote Code Execution VulnerabilityEPSS 0.5%CVE-2025-26684MEDIUMMicrosoft Defender Elevation of Privilege VulnerabilityEPSS 0.4%