CVE-2025-2884: Cert CC: CVE-2025-2884 Out-of-Bounds read vulnerability in TCG TPM2.0 reference implementation
Overview
- Severity
- Medium (CVSS 5.3)
- CVSS Vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L/E:U/RL:O/RC:C
- Category
- Information Disclosure
- Exploit Status
- Not Exploited
- Exploitation Likelihood
- Less Likely
- Publicly Disclosed
- Yes
- Patch Tuesday
- 2025-Oct
- Released
- 2025-10-14
- Last Updated
- 2026-02-10
- EPSS Score
- 0.07% (percentile: 21.9%)
Description
CVE-2025-2884 is regarding a vulnerability in TCG TPM2.0 Reference implementation's CryptHmacSign helper function that is vulnerable to Out-of-Bounds read due to the lack of validation the signature scheme with the signature key's algorithm.
CERT/CC created this CVE on their behalf. The documented Windows updates incorporate updates in TCG TPM2.0 Reference implementation which address this vulnerability. Please see CVE-2025-2884 for more information.
Affected Products (8)
Windows
- Windows 11 Version 25H2 for x64-based Systems
- Windows 11 version 26H1 for x64-based Systems
- Windows Server 2025 (Server Core installation)
- Windows 11 Version 23H2 for x64-based Systems
- Windows Server 2022, 23H2 Edition (Server Core installation)
- Windows 11 Version 24H2 for x64-based Systems
- Windows Server 2025
ESU
- Windows 11 Version 22H2 for x64-based Systems
Security Updates (4)
Acknowledgments
Anonymous, Anonymous, TCG [security@trustedcomputing.org] TCG
Revision History
- 2025-10-14: Information published.
- 2026-02-10: Added Affected Software for Windows packages