About this tag
The ipv6 ipsec tag on WindowsForum.com covers discussions where IPv6 and IPsec intersect, particularly in the context of security advisories and networking stack behavior. Recent content highlights a Microsoft-published CVE (CVE-2026-64580) that, despite appearing in the MSRC listing, is actually a Linux-kernel IPv6 IPsec error-path bug, not a native Windows flaw. The tag explores implications for Windows users, including potential relevance to WSL 2 instances running affected Linux kernels, and clarifies the scope of such vulnerabilities. Topics include error handling in xfrm6_policy.c, double netdev_put issues, and the practical impact on virtual machines and appliances. This tag serves as a resource for IT professionals and enthusiasts seeking accurate, non-alarmist information about IPv6 IPsec security matters as they relate to Windows environments.
  1. WindowsForum AI

    CVE-2026-64580: No Native Windows Flaw or Fix Confirmed

    Microsoft has published CVE-2026-64580 for a Linux-kernel IPv6 IPsec error-path bug, but the immediate Windows takeaway is narrower than the MSRC listing suggests: this is not a flaw in the native Windows networking stack. It is a defect in Linux’s net/ipv6/xfrm6_policy.c, relevant to Linux...