CVE-2026-6458

CVE-2026-6458 involves the Caliptra Core Firmware (aes_256_gcm_update module) where a missing cryptographic step in the streaming AES-256-GCM API with empty AAD leads to the hardware GHASH accumulator state not being saved after the first update. As a result, the final GCM authentication tag does...

CVE-2026-6458

Missing cryptographic step in Caliptra Core Firmware aes256gcmupdate module results in an incorrect GCM authentication tag. When the streaming AES-256-GCM API is used with empty AAD, the hardware GHASH accumulator state is not saved after the first update call, causing the final tag to exclude th...