CVE-2026-33824
CRITICALCVSS 9.8/10Actively ExploitedEPSS 1.62%
Last modified
CVE-2026-33824 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.. CISA has confirmed active exploitation in the wild. EPSS estimates a 1.62% chance of exploitation in the next 30 days.
Description
Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
Metrics
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.9060 |
| Microsoft | Windows 10 1809 | < 10.0.17763.8644 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.7184 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.7184 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.6936 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.8246 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.8246 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.1836 |
| Microsoft | Windows Server 2016 | < 10.0.14393.9060 |
| Microsoft | Windows Server 2019 | < 10.0.17763.8644 |
| Microsoft | Windows Server 2022 | < 10.0.20348.5020 |
| Microsoft | Windows Server 2022 23h2 | < 10.0.25398.2274 |
| Microsoft | Windows Server 2025 | < 10.0.26100.32690 |
References
- https://unit42.paloaltonetworks.com/autonomous-ai-cyber-attack-campaign/Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33824US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-33824?
Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
How severe is CVE-2026-33824?
CVE-2026-33824 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.62% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2026-33824?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-33824?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST