CVE-2023-36400
HIGHCVSS 8.8/10EPSS 4.26%
Last modified
CVE-2023-36400 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Windows HMAC Key Derivation Elevation of Privilege Vulnerability. EPSS estimates a 4.26% chance of exploitation in the next 30 days.
Description
Windows HMAC Key Derivation Elevation of Privilege Vulnerability
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1507 | < 10.0.10240.20308 |
| Microsoft | Windows 10 1607 | < 10.0.14393.6452 |
| Microsoft | Windows 10 1809 | < 10.0.17763.5122 |
| Microsoft | Windows 10 21h2 | < 10.0.19041.3693 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.3693 |
| Microsoft | Windows 11 21h2 | < 10.0.22000.2600 |
| Microsoft | Windows 11 22h2 | < 10.0.22621.2715 |
| Microsoft | Windows 11 23h2 | < 10.0.22621.2715 |
| Microsoft | Windows Server 2016 | All versions |
| Microsoft | Windows Server 2019 | All versions |
| Microsoft | Windows Server 2022 | All versions |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36400Patch, Vendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36400Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-36400?
Windows HMAC Key Derivation Elevation of Privilege Vulnerability
How severe is CVE-2023-36400?
CVE-2023-36400 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 4.26% probability of exploitation in the next 30 days.
How do I fix CVE-2023-36400?
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-2023-36400?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST