cve-2026-43088

About this tag
CVE-2026-43088 is a Linux kernel information-disclosure vulnerability published on May 6, 2026, affecting PF_KEY export messages that can expose four uninitialized padding bytes from IPv6 sockaddr data in IPsec-related paths. While not a Windows kernel bug, it impacts environments where Linux workloads run alongside Windows, including WSL, containers, and appliances. The severity remains unsettled as NVD has not yet assigned a CVSS score. This tag covers discussions about the flaw's technical details, its relevance to mixed Windows-Linux infrastructure, and the broader lesson that security risks often hide in compatibility layers and vendor kernels.

  1. 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