CVE-2026-34329

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over an adjacent network.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122

Affected software

No affected versions have been published.

Timeline

Published
May 12, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-34334.3Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15, 10.11.x <= 10.11.16 fail to restrict role_updated websocket eveCVE-2026-343307.8Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized atCVE-2026-343317.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized atCVE-2026-343328.0Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.CVE-2026-343337.8Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.CVE-2026-343347.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker CVE-2026-343357.0Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.CVE-2026-343367.8Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.CVE-2026-343377.0Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.CVE-2026-343387.8Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.CVE-2026-343395.5Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally.CVE-2026-343407.0Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
CVE-2026-34329: High severity, CVSS 8.8 | Vulnix