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pf_key and ipsec

About this tag
The pf_key and ipsec tag on WindowsForum.com covers discussions about the PF_KEY socket interface and IPsec protocol implementations, particularly in cross-platform environments. Content includes analysis of vulnerabilities like CVE-2026-43088, a Linux kernel information-disclosure flaw in PF_KEY export messages that can expose uninitialized IPv6 bytes in IPsec-related paths. While the bug is not a Windows kernel vulnerability, it affects Windows estates running Linux workloads, WSL, containers, or appliances. The tag explores how such issues highlight risks in compatibility code and the seams between operating systems. Topics also touch on security updates, kernel patches, and the broader implications for enterprise IT infrastructure.
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    CVE-2026-43088: Linux Kernel PF_KEY Info Leak (4 Uninitialized IPv6 Bytes)

    CVE-2026-43088 is a Linux kernel information-disclosure flaw published on May 6, 2026, in which PF_KEY export messages can expose four uninitialized padding bytes from IPv6 sockaddr data in specific IPsec-related paths, according to the kernel.org CVE record mirrored by Microsoft’s Security...
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    • cve-2026-43088 linux kernel security pf_key and ipsec wsl vulnerability
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    • Forum: Security Alerts
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