Quantum Secular Labs / Blog / Advisories

CVE-2022-26809: Remote Procedure Call Runtime Remote Code Execution Vulnerability

CVE-2022-26809 is rated critical with a CVSS v3.1 base score of 9.8 and NVD lists 10 affected products, including Microsoft Windows 10. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Remote Procedure Call Runtime Remote Code Execution Vulnerability

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Unchanged. Impact stays within the vulnerable component.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Affected products

  • Microsoft Windows 10: all versions listed by NVD; 20h2; 21h1; 21h2; 1607; 1809; 1909
  • Microsoft Windows 11: all versions listed by NVD
  • Microsoft Windows 7: all versions listed by NVD
  • Microsoft Windows 8.1: all versions listed by NVD
  • Microsoft Windows Rt 8.1: all versions listed by NVD
  • Microsoft Windows Server 2008: all versions listed by NVD; r2 sp1
  • Microsoft Windows Server 2012: all versions listed by NVD; r2
  • Microsoft Windows Server 2016: all versions listed by NVD; 20h2
  • Microsoft Windows Server 2019: all versions listed by NVD
  • Microsoft Windows Server 2022: all versions listed by NVD

References