CVE-2026-54992

Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally.

Affected

Microsoft · Windows 10 Version 1607 · Windows 10 Version 1809 · Windows 10 Version 21H2 · Windows 10 Version 22H2 · Windows 11 Version 24H2 · Windows 11 Version 25H2

CVSS v3.1 NVD

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 MICROSOFT

8.4 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.34% chance of exploitation in the next 30 days, 26th percentile

Published

2026-07-14

Updated

2026-10-08

Proof-of-concept exploits (1)

• DavidCarliez/CVE-2026-54992-PoC6★ · 2026-07-16

Security advisories

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54992

References

• CVE Record
• NVD entry

Related

• CVE-2019-9702
• CVE-2026-49176
• CVE-2026-50454
• CVE-2026-58635
• CVE-2026-66804