Widespread Windows OS network component; remote code execution could disrupt enterprises.
CVE-2026-33824
Remote code execution via double-free in Windows IKE Extension.
Is CVE-2026-33824 being exploited?
Yes. CVE-2026-33824 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2026-33824?
CVE-2026-33824 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-33824?
Yes. A fix has been recorded for CVE-2026-33824. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-33824 affect?
CVE-2026-33824 affects Windows OS (IKE Extension). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-33824?
Patch when available; implement mitigations; monitor network traffic.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can trigger arbitrary code on a target Windows host via crafted network traffic.
Immediate action required
- affected>= 10.0.14393.0 and < 10.0.14393.9060
- affected>= 10.0.17763.0 and < 10.0.17763.8644
- affected>= 10.0.19044.0 and < 10.0.19044.7184
- affected>= 10.0.19045.0 and < 10.0.19045.7184
- affected>= 10.0.22631.0 and < 10.0.22631.6936
- affected>= 10.0.22631.0 and < 10.0.22631.6936
- affected>= 10.0.26100.0 and < 10.0.26100.8246
- affected>= 10.0.26200.0 and < 10.0.26200.8246
- affected>= 10.0.28000.0 and < 10.0.28000.1836
- affected>= 10.0.14393.0 and < 10.0.14393.9060
- affected>= 10.0.14393.0 and < 10.0.14393.9060
- affected>= 10.0.17763.0 and < 10.0.17763.8644
- affected>= 10.0.17763.0 and < 10.0.17763.8644
- affected>= 10.0.20348.0 and < 10.0.20348.5020
- affected>= 10.0.25398.0 and < 10.0.25398.2274
- affected>= 10.0.26100.0 and < 10.0.26100.32690
- affected>= 10.0.26100.0 and < 10.0.26100.32690
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.