Cyber Resilience

CVE-2022-26809

Critical

Published: 15 April 2022

Published
15 April 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.9256 99.8th percentile
Risk Priority 75 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-26809 is a critical-severity an unspecified weakness vulnerability in Microsoft Windows 10. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 0.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2022-26809 is a remote code execution vulnerability affecting the Remote Procedure Call Runtime component. It carries a CVSS 3.1 base score of 9.8 and was published on 15 April 2022.

An unauthenticated attacker can exploit the flaw over the network without user interaction to obtain full control over confidentiality, integrity, and availability on the target system.

Microsoft’s security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26809 supplies patch information and mitigation guidance for affected Windows installations.

The CVE’s EPSS score has remained near its peak value of 0.9260, indicating sustained exploitation interest after disclosure.

EU & UK References

Vulnerability details

Remote Procedure Call Runtime 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 10
1607, 1809, 1909, 20h2, 21h1
microsoft
windows 11
all versions
microsoft
windows 7
all versions
microsoft
windows 8.1
all versions
microsoft
windows rt 8.1
all versions
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