Out-of-Bounds read vulnerability in TCG TPM2.0 reference implementation
Priority LOW 29CWE-125Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00257 17th percentileScored 2026-11-07
Fix Fixed TPM2.0 (Trusted Computing Group): 1.83
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Trusted Computing Group | TPM2.0 | before 1.83 | 1.83 | Patch available | CNA |
- TPM2.0 VendorTrusted Computing Group Affected before 1.83 Fixed in 1.83 Patch available CNA
Remediation
- Fix · CNA TPM2.0 (Trusted Computing Group) Fixed in 1.83
Timeline
- 2026-10-02 Threatist record created from CVE-2025-2884
- 2026-10-03 Alias added: GHSA-3fxc-2crv-fg9x
References
More Trusted Computing Group vulnerabilities
- TI-2023-00962 TPM2.0 vulnerable to out-of-bounds write CVSS 3.1HIGH 7.8
- TI-2026-05892 An information leakage vulnerability in the TCG TPM 2.0 reference code. CVSS 3.1HIGH 7.9
- TI-2012-00643 tcsd in TrouSerS before 0.3.10 allows remote attackers to cause a denial of service… CVSS 2.0MEDIUM 5.0
- TI-2023-00963 TPM2.0 vulnerable to out-of-bounds read CVSS 3.1MEDIUM 5.5
- TI-2018-04880 An issue was discovered that affects all producers of BIOS firmware who make a certain… CVSS 3.0HIGH 7.1
- TI-2020-16360 Trusted Computing Group (TCG) Trusted Platform Module Library Family 2.0 Library… CVSS 3.1HIGH 7.2
Sources
- CVE-2025-2884 · CVE Program
- CVE-2025-2884 · NVD
- FIRST EPSS
- GHSA-3fxc-2crv-fg9x · GitHub Advisory Database · CC BY 4.0
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