Use After Free in Microsoft Windows Server 2016
CVE-2024-26221
Windows DNS Server Remote Code Execution Vulnerability
Vulnerability class: Use-After-Free
EPSS: 0.018 (76.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows Server 2016 — versions 10.0.14393.0
- Microsoft Windows_server_2016
- Microsoft Windows Server 2016 (Server Core Installation) — versions 10.0.14393.0
- Microsoft Windows Server 2019 — versions 10.0.17763.0
- Microsoft Windows_server_2019
- Microsoft Windows Server 2019 (Server Core Installation) — versions 10.0.17763.0
- Microsoft Windows Server 2022 — versions 10.0.20348.0
- Microsoft Windows_server_2022
- Microsoft Windows_server_2022_23h2
- Microsoft Windows Server 2022, 23h2 Edition (Server Core Installation) — versions 10.0.25398.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-26221?
- CVE-2024-26221 is a high-severity vulnerability in Microsoft Windows Server 2016, classified under Use After Free. CVSS score: 7.2/10. Published 2024-04-09.
- How severe is CVE-2024-26221?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2024-26221 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.