High severity7.8NVD Advisory· Published May 12, 2026· Updated May 14, 2026
CVE-2026-33838
CVE-2026-33838
Description
Double free in Windows Message Queuing allows an authorized attacker to elevate privileges locally.
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33838nvdVendor Advisory
News mentions
3- Patch Tuesday - May 2026Rapid7 Blog · May 13, 2026
- Microsoft May 2026 Patch Tuesday fixes 120 flaws, no zero-daysBleepingComputer · May 12, 2026
- ZDI-26-309: Microsoft Windows Message Queueing Double Free Local Privilege Escalation VulnerabilityZero Day Initiative · May 12, 2026