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VULNERABILITIES

CVE-2026-6727 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://trustedcomputinggroup.org/about/security/ [email protected]
https://trustedcomputinggroup.org/wp-content/uploads/Extended-vrt0010-11-guidance_V1.pdf [email protected]
https://trustedcomputinggroup.org/wp-content/uploads/VRT0011-Advisory_Final-1.pdf [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-208Observable Timing DiscrepancyCISA-ADP

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-6727
NVD Published Date:
Aug 11, 2026
NVD Last Modified:
Sep 8, 2026
Source:
[email protected]
CVE-2026-6727 Details - Not Deferred