🛡️ CVE-2026-6420
🟡 CVSS 6.3 — Medium ✅ No Known Exploit CWE-1241 NVD
6.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A flaw was found in Keylime. An attacker with root access on an enrolled monitored machine, where the Keylime agent runs, can exploit a vulnerability in the Keylime verifier. The verifier uses a hardcoded challenge nonce for Trusted Platform Module (TPM) quote attestation instead of a cryptographically random value. This allows the attacker to stockpile valid TPM quotes and replay them to evade detection after compromising the system. This issue affects only the push model deployment.

Details

Severity Medium
CVSS Score 6.3
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
CWE CWE-1241
Public Exploit ✅ No
Source NVD
Published 2026-05-11
Updated 2026-06-02
Modified 2026-05-11
Fix URL N/A

Affected Packages

Software From version Fixed in
keylime 7.14.0 7.14.2
unknown — —

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