CVE-2026-6727
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
37/100
Published: 2026-08-11
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
No Auth
No Interaction
Conf. Impact
Scope Change
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
None
UI:
None
S:
Changed
C:
High
I:
None
A:
None
Description
A timing side-channel vulnerability exists in the RSA OAEP decryption implementation. A privileged local attacker with access to the TPM command interface may be able to exploit timing differences to recover information that could allow decryption of ciphertexts encrypted to TPM-managed RSA keys, including the RSA Endorsement Key (EK), including import blobs, credential blobs, and session salts. Under certain conditions, this may also enable the forgery of TPM 2.0 attestations. Refer to TCGVRT0011.