Cyber Resilience

CVE-2022-26823

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 0.1014 93.3th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-26823 is a high-severity an unspecified weakness vulnerability in Microsoft Windows Server 2016. Its CVSS base score is 7.2 (High).

Operationally, ranked in the top 6.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

Windows DNS Server is affected by a remote code execution vulnerability tracked as CVE-2022-26823. The flaw permits an attacker to execute arbitrary code on a vulnerable system and carries a CVSS 3.1 base score of 7.2 with network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability.

An authenticated attacker with high privileges can exploit the issue remotely without user interaction to achieve full control over the DNS server, including the ability to read, modify, or delete data and disrupt service availability.

Microsoft security advisories for the vulnerability direct administrators to apply the patches released in the April 2022 security updates. The EPSS score for this CVE has remained flat at 0.1014 with no material increase observed 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 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