Cyber Resilience

CVE-2022-26812

High

Published: 15 April 2022

Published
15 April 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0642 91.3th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-26812 is a high-severity an unspecified weakness vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 7.2 (High).

Operationally, ranked in the top 8.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2022-26812 is a remote code execution vulnerability affecting the Windows DNS Server component. It carries a CVSS 3.1 base score of 7.2 with network attack vector, low attack complexity, and high privileges required, resulting in high impact to confidentiality, integrity, and availability.

An attacker with high privileges can exploit the flaw over the network to execute arbitrary code on an affected DNS server, potentially leading to full compromise of the server and the domains it serves.

Microsoft security advisories at the referenced MSRC pages describe available patches and mitigation steps for the vulnerability.

The associated EPSS score has remained flat at 0.0642 with no material increase after disclosure.

EU & UK References

Vulnerability details

Windows DNS Server Remote Code Execution Vulnerability

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
windows server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
microsoft
windows server 2016
20h2, all versions
microsoft
windows server 2019
all versions
microsoft
windows server 2022
all versions

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References