CVE-2026-20829
MEDIUMCVSS 5.5/10EPSS 0.53%
Last modified
CVE-2026-20829 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1809 | < 10.0.17763.8276 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.6809 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.6809 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.6491 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.7623 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.7623 |
| Microsoft | Windows Server 2019 | < 10.0.17763.8276 |
| Microsoft | Windows Server 2022 | < 10.0.20348.4648 |
| Microsoft | Windows Server 2022 23h2 | < 10.0.25398.2092 |
| Microsoft | Windows Server 2025 | < 10.0.26100.32230 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-20829?
Out-of-bounds read in Windows TPM allows an authorized attacker to disclose information locally.
How severe is CVE-2026-20829?
CVE-2026-20829 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.
How do I fix CVE-2026-20829?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-20829?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST