CVE-2026-45636
HIGHCVSS 7.8/10EPSS 0.41%
Last modified
CVE-2026-45636 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
Description
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.9234 |
| Microsoft | Windows 10 1809 | < 10.0.17763.8880 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.7417 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.7417 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.7219 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.8655 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.8655 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.2269 |
| Microsoft | Windows Server 2012 | All versions |
| Microsoft | Windows Server 2012 | r2 |
| Microsoft | Windows Server 2016 | < 10.0.14393.9234 |
| Microsoft | Windows Server 2019 | < 10.0.17763.8880 |
| Microsoft | Windows Server 2022 | < 10.0.20348.5256 |
| Microsoft | Windows Server 2025 | < 10.0.26100.32995 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-45636?
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
How severe is CVE-2026-45636?
CVE-2026-45636 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.
How do I fix CVE-2026-45636?
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-2026-45636?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST