Critical Windows IKE Flaw: Network Code Execution Risk
The National Vulnerability Database has flagged a critical double-free vulnerability within the Windows IKE Extension. This flaw, identified as CVE-2026-33824, could empower an unauthenticated attacker to execute arbitrary code remotely over a network connection. The severity is underscored by a CVSS score of 9.8, placing it in the critical category.
Details regarding the specific products affected by this vulnerability remain unspecified by the National Vulnerability Database. However, the underlying weakness is categorized under CWE-415, which denotes a ‘double free’ error. This type of bug typically occurs when memory is freed more than once, potentially leading to heap corruption and subsequent code execution.
Given the critical CVSS score and the remote, unauthenticated nature of the attack vector, prompt attention to patching or mitigation is strongly advised for all Windows environments.
Related ATT&CK Techniques
🛡️ Detection Rules
4 rules · 5 SIEM formats4 auto-generated detection rules for this incident, mapped to MITRE ATT&CK. Available in Sigma, Splunk SPL, Sentinel KQL, Elastic Lucene, and QRadar AQL.
Web Application Exploitation Attempt — Critical Windows IKE Flaw: Network Code
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Get Detection Rules →Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-33824 | RCE | Double free in Windows IKE Extension |
| CVE-2026-33824 | Memory Corruption | Double free in Windows IKE Extension |
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