PT-2026-58226 · Microsoft · Active Directory

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-54119

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows Active Directory (affected versions not specified)

Description A loop with an unreachable exit condition, known as an infinite loop, exists in Windows Active Directory. This flaw allows an unauthorized attacker to cause a denial of service over a network, potentially knocking the domain offline.

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

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

CVE-2026-54119

Affected Products

Active Directory

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-54119 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54119 · Vendor Advisory
• https://twitter.com/windowsforum/status/2077152455133896705 · Twitter Post