ipv6 xfrm

The ipv6 xfrm tag on WindowsForum.com covers discussions about the Linux kernel's IPv6 XFRM (transform) subsystem, which handles IPsec encryption and decryption for IPv6 traffic. Content includes analysis of vulnerabilities like CVE-2026-46172, a kernel bug in the IPv6 XFRM receive path that can leak route destination references when repeated encapsulated packets hit an error route. The tag focuses on the practical implications for network operators, such as the need to patch before official CVSS scores are available. While the tag is Linux-specific, it is relevant to Windows users who manage mixed environments or run Linux VMs on Windows. Topics include kernel patches, vulnerability response, and networking at scale.