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CVE-2026-33824: Microsoft Internet Key

Status: KEV  |  Advisory ID: CVE-2026-33824

Key Details

CVECVE-2026-33824
CVSSCVSS 9.8 (Critical).
Affected productssee table below
Exploitation statusListed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
Classified asCWE-415 (Double Free)
KEV listingAdded to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-08-18.
Exploitation prediction (EPSS)73% probability of exploitation in the next 30 days (99% percentile) -- FIRST.org's EPSS model.
Federal remediation deadline2026-08-21 (CISA KEV, Binding Operational Directive).

What to Know

Microsoft Internet Key Exchange (IKE) Service Extensions contains a double free vulnerability that could enable remote code execution.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-33824