CVE-2024-26221 Windows DNS Server Remote Code Execution Vulnerability
Attackers can achieve remote code execution on Windows DNS Server via a use-after-free vulnerability, requiring immediate patching.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-26221?
CVE-2024-26221 is a high-severity use after free vulnerability in Microsoft Windows Server 2016, published on 9 Apr 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Windows DNS Server Remote Code Execution Vulnerability
Which versions are affected by CVE-2024-26221?
It affects 4 products.
Products include Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23h2.
How do I fix CVE-2024-26221?
No fix has been published for CVE-2024-26221 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-26221 being exploited?
There is no known exploitation of CVE-2024-26221 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Server 2016
- CVE-2021-34458 Windows Kernel Remote Code Execution Vulnerability
- CVE-2024-38076 Windows Remote Desktop Licensing Service Remote Code Execution Vulnerability
- CVE-2026-27928 Windows Hello Security Feature Bypass Vulnerability
- CVE-2025-27482 Windows Remote Desktop Services Remote Code Execution Vulnerability
- CVE-2024-49106 Windows Remote Desktop Services Remote Code Execution Vulnerability
Sources
Also known as GHSA-c274-3m34-wwp8.