CVE-2024-26233: 
vulnerability analysis and mitigation

Windows DNS Server Remote Code Execution Vulnerability (CVE-2024-26233) was disclosed on April 9, 2024, affecting multiple versions of Windows Server including Server 2016, 2019, and 2022. The vulnerability was discovered and reported through Microsoft's security response program (MSRC, NVD).

The vulnerability has been assigned a CVSS v3.1 base score of 7.2 (HIGH) by Microsoft, with a vector string of CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. The NVD has assessed it with a slightly lower score of 6.6 (MEDIUM) with vector string CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H. Microsoft has classified this as a Use After Free (CWE-416) vulnerability (NVD).

If successfully exploited, this vulnerability could allow an attacker to execute remote code on affected Windows DNS Server systems. The vulnerability affects multiple versions of Windows Server, including Server 2016 (versions up to 10.0.14393.6897), Server 2019 (versions up to 10.0.17763.5696), Server 2022 (versions up to 10.0.20348.2402), and Server 2022 23h2 (versions up to 10.0.25398.830) (NVD).

Microsoft has released security updates to address this vulnerability. Organizations running affected versions of Windows Server should prioritize deploying these patches as part of their April 2024 security update cycle (HelpNet Security).