Cert CC: CVE-2025-2884 Out-of-Bounds read vulnerability in TCG TPM2.0 reference implementation
CVE-2025-2884 is fixed in 7 products on 1 platform, first by KB5066793, released October 14, 2025. It is not reported as exploited. Patch Radar priority: Routine.
<p><a href="https://www.cve.org/CVERecord?id=CVE-2025-2884">CVE-2025-2884</a> 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.</p> <p>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 <a href="https://www.cve.org/CVERecord?id=CVE-2025-2884">CVE-2025-2884</a> for more information.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 11 Version 22H2 for x64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 23H2 for x64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 24H2 for x64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows 11 Version 25H2 for x64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows Server 2022, 23H2 Edition (Server Core installation) | 25398.1913 | KB5066780 | Oct 14, 2025 |
| Windows Server 2025 | KB5066835 | Oct 14, 2025 | |
| Windows Server 2025 (Server Core installation) | KB5066835 | Oct 14, 2025 | |
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