CVE-2026-6727
CVE-2026-6727
MEDIUM 5.9
At a glance
- Source
- NVD
- EPSS
- EPSS 0.15 % · percentile 4 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- certcc
- NVD status
- Awaiting Analysis
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.
Weaknesses (CWE)
- CWE-208 — Observable Timing Discrepancy
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N | CISA-ADP |
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-56223
- GCVE · GCVE-0-2026-6727
CERT-FR advisories
- CERTFR-2026-AVI-1003 — Multiples vulnérabilités dans Microsoft Azure · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1001 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Trusted Computing Group · TPM2.0 | affected 0 ≤ v184 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |