PT-2026-58238 · Microsoft · Windows Message Queuing

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-54992

Positive Technologies (AI Summary)

CVSS v3.1

8.4

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows Message Queuing Queue Manager (affected versions not specified)

Description A heap-based buffer overflow exists in the Windows Message Queuing Queue Manager. This flaw allows an unauthorized attacker to execute code locally. A heap-based buffer overflow occurs when a program writes more data to a heap memory block than it can hold, potentially corrupting memory and allowing for arbitrary code execution.

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

RCE

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-54992

Affected Products

Windows Message Queuing

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-54992 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54992 · Vendor Advisory
• https://twitter.com/windowsforum/status/2077149443070017649 · Twitter Post