PT-2026-32737 · Microsoft · Remote Desktop Licensing Service+1

Howard Mcgreehan · Published 2026-04-14 · Updated 2026-04-15 · CVE-2026-26159

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows Remote Desktop Licensing Service (affected versions not specified)

Description A missing authentication for a critical function in the Windows Remote Desktop Licensing Service allows an authorized attacker to elevate privileges locally, which can affect the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Missing Authentication

Weakness Enumeration

CWE-306

Related Identifiers

BDU:2026-05290

CVE-2026-26159

Affected Products

Remote Desktop Licensing Service

Windows

References · 6

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-26159 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26159 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-26159 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-26159 · Security Note
• https://bdu.fstec.ru/vul/2026-05290 · Security Note
• https://twitter.com/CVEnew/status/2044358621836742733 · Twitter Post