CVE-2026-33824

CriticalCVSS 9.8/10Known exploited (CISA KEV)Last modified Sep 25, 2026

Description

Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

No affected versions have been published.

Timeline

Published
Apr 14, 2026
Last modified
Sep 25, 2026
Added to CISA KEV
Aug 18, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-338257.8Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.CVE-2026-338268.0Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.CVE-2026-338278.1Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attackeCVE-2026-338287.8Trust boundary violation in Windows Attestation allows an authorized attacker to elevate privileges locally.CVE-2026-338294.3Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to perform spoofing overCVE-2026-33835.5A weakness has been identified in ChaiScript up to 6.1.0. This affects the function chaiscript::Boxed_Number::go of the file include/chaiscrCVE-2026-338338.2Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Machine Learning allows an unautCVE-2026-338347.8Improper access control in Windows Event Logging Service allows an authorized attacker to elevate privileges locally.CVE-2026-338357.8Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.CVE-2026-338377.8Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.CVE-2026-338387.8Double free in Windows Message Queuing allows an authorized attacker to elevate privileges locally.CVE-2026-338397.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized at
CVE-2026-33824: Critical severity, CVSS 9.8 | Vulnix