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.
History

Tue, 11 Aug 2026 15:45:00 +0000

Type Values Removed Values Added
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.
Title CVE-2026-6727
References

cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2026-08-11T15:25:58.448Z

Reserved: 2026-04-20T21:18:19.891Z

Link: CVE-2026-6727

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-11T16:17:34.503

Modified: 2026-08-11T16:17:34.503

Link: CVE-2026-6727

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.