Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-33824

CVE-2026-33824CRITICAL

Microsoft Windows 10 Version 1607 — Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .0162   75.2   YES

AFFECTED
  Product                  Versions        Fixed
  Windows 10 Version 1607  10.0.14393.0 –  —
  Windows 10 Version 1809  10.0.17763.0 –  —
  Windows 10 Version 21H2  10.0.19044.0 –  —
  Windows 10 Version 22H2  10.0.19045.0 –  —
  Windows 11 version 23H2  10.0.22631.0 –  —
  Windows 11 Version 23H2  10.0.22631.0 –  —
  Windows 11 Version 24H2  10.0.26100.0 –  —
  Windows 11 Version 25H2  10.0.26200.0 –  —
  Windows 11 version 26H1  10.0.28000.0 –  —
  Windows Server 2016      10.0.14393.0 –  —
  + 7 more

TIMELINE
  Mar 24  Reserved by microsoft
  Apr 14  Published (CNA: microsoft)
  Aug 18  ADDED TO KEV — CVE-2026-33824 (Microsoft Windows 10 Version 1607). Remediation due August 21, 2026.
  Aug 22  DUE DATE PASSED — CVE-2026-33824 (Microsoft Windows 10 Version 1607). CISA remediation deadline was August 21, 2026; still in catalog.

CWE-415 · CNA: microsoft · CVSS v3.1 · 3 references · NVD status: Analyzed · KEV due August 21, 2026

Description

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

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
March 24, 2026	Reserved	Reserved by microsoft
April 14, 2026	Published	Published (CNA: microsoft)
August 18, 2026	KEV ADDED	ADDED TO KEV — CVE-2026-33824 (Microsoft Windows 10 Version 1607). Remediation due August 21, 2026.
August 22, 2026	DUE DATE PASSED	DUE DATE PASSED — CVE-2026-33824 (Microsoft Windows 10 Version 1607). CISA remediation deadline was August 21, 2026; still in catalog.

Affected

Affected products and packages — 17 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Windows 10 Version 1607	—	10.0.14393.0	—
Microsoft	Windows 10 Version 1809	—	10.0.17763.0	—
Microsoft	Windows 10 Version 21H2	—	10.0.19044.0	—
Microsoft	Windows 10 Version 22H2	—	10.0.19045.0	—
Microsoft	Windows 11 version 23H2	—	10.0.22631.0	—
Microsoft	Windows 11 Version 23H2	—	10.0.22631.0	—
Microsoft	Windows 11 Version 24H2	—	10.0.26100.0	—
Microsoft	Windows 11 Version 25H2	—	10.0.26200.0	—
Microsoft	Windows 11 version 26H1	—	10.0.28000.0	—
Microsoft	Windows Server 2016	—	10.0.14393.0	—
Microsoft	Windows Server 2016 (Server Core installation)	—	10.0.14393.0	—
Microsoft	Windows Server 2019	—	10.0.17763.0	—
Microsoft	Windows Server 2019 (Server Core installation)	—	10.0.17763.0	—
Microsoft	Windows Server 2022	—	10.0.20348.0	—
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	—	10.0.25398.0	—
Microsoft	Windows Server 2025	—	10.0.26100.0	—
Microsoft	Windows Server 2025 (Server Core installation)	—	10.0.26100.0	—

Weaknesses

CWE-415

References (3)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33824 [Vendor Advisory]
https://unit42.paloaltonetworks.com/autonomous-ai-cyber-attack-campaign/ [Third Party Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33824 [US Government Resource]

Authoritative record: CVE-2026-33824 at cve.org

Vendors: microsoft

Weaknesses: CWE-415

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-33824 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.