SB20260414133 - Multiple vulnerabilities in Microsoft Remote Desktop Licensing Service

Description

This security bulletin contains information about 2 vulnerabilities.

1) Missing Authentication for Critical Function (CVE-ID: CVE-2026-26159)

CWE-ID: CWE-306 - Missing Authentication for Critical Function

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to missing authentication for critical function in Remote Desktop Licensing Service. A local user can gain elevated privileges on the target system.

2) Missing Authentication for Critical Function (CVE-ID: CVE-2026-26160)

CWE-ID: CWE-306 - Missing Authentication for Critical Function

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to missing authentication for critical function in Remote Desktop Licensing Service. A local user can gain elevated privileges on the target system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26159
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26160