What’s Vulnerable › Vulnerabilities

CVE-2025-2884: Out-of-Bounds read vulnerability in TCG TPM2.0 reference implementation

• Severity: medium (CVSS 6.6 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: 2025-06-10 · updated 2026-10-15
• Weakness: CWE-125

Description

TCG TPM2.0 Reference implementation's CryptHmacSign helper function is vulnerable to Out-of-Bounds read due to the lack of validation the signature scheme with the signature key's algorithm. See Errata Revision 1.83 and advisory TCGVRT0009 for TCG standard TPM2.0

Affected products

• Trusted Computing Group TPM2.0: before 1.83 — fixed in 1.83

How to fix

Upgrade to a fixed version: Trusted Computing Group TPM2.0 1.83. Check the vendor advisory for mitigations.

References

• https://github.com/stefanberger/libtpms/commit/04b2d8e9afc0a9b6bffe562a23e58c0de11532d1
• https://trustedcomputinggroup.org/about/security/
• https://trustedcomputinggroup.org/wp-content/uploads/TPM2.0-Library-Spec-v1.83-Errata_v1_pub.pdf
• https://trustedcomputinggroup.org/wp-content/uploads/VRT0009-Advisory-FINAL.pdf
• https://www.cve.org/CVERecord?id=CVE-2025-49133
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01209.html
• https://www.kb.cert.org/vuls/id/282450
• https://cert-portal.siemens.com/productcert/html/ssa-628843.html

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