CVE-2020-26933 json
Trusted Computing Group (TCG) Trusted Platform Module Library Family 2.0 Library Specification Revisions 1.38 through 1.59 has Incorrect Ac…
published 2020-11-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19463
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 22%
- public exploits
- 0
- none known
Summary
Trusted Computing Group (TCG) Trusted Platform Module Library Family 2.0 Library Specification Revisions 1.38 through 1.59 has Incorrect Access Control during a non-orderly TPM shut-down that uses USE_DA_USED. Improper initialization of this shut-down may result in susceptibility to a dictionary attack.
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AC:H/AV:L/A:N/C:H/I:H/PR:H/S:C/UI:N |
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 3.6 | AV:L/AC:L/Au:N/C:P/I:P/A:N |
Classification
- Weakness
-
- CWE-665 Improper Initialization
References
-
trustedcomputinggroup.org
/about/security/
vendor-advisory
-
trustedcomputinggroup.org
/wp-content/uploads/TCGVRT004-Advisory-FINAL.pdf
vendor-advisory
Sources
- CVE List CVE-2020-26933
- NVD CVE-2020-26933
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