CVE-2026-6420

CVE-2026-6420 affects Keylime: a flaw in the verifier uses a hardcoded TPM quote nonce instead of a cryptographically random value. An attacker with root on an enrolled monitored machine where the Keylime agent runs can stockpile valid TPM quotes and replay them to evade detection after compromis...

CVE-2026-6420 Keylime: keylime: security bypass due to hardcoded tpm quote nonce

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...