Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since August 18, 2026.
CVE-2026-33824
Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability
Microsoft · Internet Key Exchange (IKE) Service Extensions
Added to KEV August 18, 2026
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2026-33824
- CWE
- CWE-415
- Affected products
- Internet Key Exchange (IKE) Service Extensions · Microsoft Internet Key Exchange (IKE) Service Extensions · Microsoft
What happened
Microsoft Internet Key Exchange (IKE) Service Extensions contains a double free vulnerability that could enable remote code execution.
What it means for your business
Microsoft Internet Key Exchange (IKE) Service Extensions is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-33824). Microsoft Internet Key Exchange (IKE) Service Extensions contains a double free vulnerability that could enable remote code execution. CISA remediation due date: 2026-08-21. If you need help checking exposure, call (864) 335-9223.
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CISA due date: August 21, 2026
Sources
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