Integer overflow in Microsoft Windows_11_21h2
CVE-2024-21309
Windows Kernel-Mode Driver Elevation of Privilege Vulnerability
EPSS: 0.008 (50.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows_11_21h2
- Microsoft Windows_11_22h2
- Microsoft Windows_11_23h2
- Microsoft Windows 11 Version 21h2 — versions 10.0.0
- Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
- Microsoft Windows 11 Version 22h3 — versions 10.0.22631.0
- Microsoft Windows 11 Version 23h2 — versions 10.0.22631.0
- Microsoft Windows Server 2022 — versions 10.0.20348.0
- Microsoft Windows_server_2022
- Microsoft Windows_server_2022_23h2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (vendor-advisory, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-21309?
- CVE-2024-21309 is a high-severity vulnerability in Microsoft Windows_11_21h2, classified under Integer Underflow. CVSS score: 7.8/10. Published 2024-01-09.
- How severe is CVE-2024-21309?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2024-21309 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.