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Multiple Windows IKE Vulnerabilities Disclosed on September 8, 2026

First seen 8 Sep 2026, 19:20 UTC • •

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ThreatCluster AI
ThreatCluster •September 9, 2026 at 19:14 UTC

On September 8, 2026, Microsoft disclosed four vulnerabilities related to the Internet Key Exchange (IKE) protocol. CVE-2026-69429 is a remote code execution vulnerability that requires an authorized attacker to exploit a heap-based buffer overflow. CVE-2026-50696, CVE-2026-69881, and CVE-2026-69587 are denial of service vulnerabilities that allow unauthorized attackers to disrupt services through null pointer dereferences and heap-based buffer overflows. The vulnerabilities affect Windows systems utilizing the IKE protocol. The attack complexity for CVE-2026-69429 is high, indicating that exploitation is not straightforward and depends on various factors. As of the publication date, no active exploitation has been reported for these vulnerabilities. Administrators are advised to review the vulnerabilities and apply necessary patches as they become available.

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Timeline

2026-07-14
CVE-2026-50696 published
Heap-based buffer overflow in IKE Protocol allows unauthorized denial of service.
Api.Msrc.Microsoft
2026-09-08
CVE-2026-69429 published
Heap-based buffer overflow in Windows IKE Extension allows authorized remote code execution.
Api.Msrc.Microsoft
2026-09-08
CVE-2026-69881 published
Null pointer dereference in IKE Extension allows unauthorized denial of service.
Api.Msrc.Microsoft
2026-09-08
CVE-2026-69587 published
Null pointer dereference in IKE Extension allows unauthorized denial of service.
Api.Msrc.Microsoft

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