What’s Vulnerable › Vulnerabilities

CVE-2020-26933

• Severity: medium (CVSS 6.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-18 · updated 2026-06-17
• Weakness: CWE-665

Description

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.

Affected products

• Trustedcomputinggroup Trusted Platform Module: 2.0-revision_1.38, 2.0-revision_1.40, 2.0-revision_1.59

References

• https://trustedcomputinggroup.org/about/security/
• https://trustedcomputinggroup.org/wp-content/uploads/TCGVRT004-Advisory-FINAL.pdf
• https://trustedcomputinggroup.org/about/security/
• https://trustedcomputinggroup.org/wp-content/uploads/TCGVRT004-Advisory-FINAL.pdf

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