cve-2026-31417

About this tag
CVE-2026-31417 is a Linux kernel vulnerability in the X.25 networking stack, where an internal packet counter can overflow beyond safe bounds. The fix adds an overflow check and a reset during queue cleanup to prevent corrupted bookkeeping and unstable packet handling. Microsoft's Security Update Guide has listed this CVE, and the Linux stable tree includes the upstream patch. The NVD enrichment is pending, so no final CVSS score is available yet. This is a classic kernel-hardening issue in a legacy protocol, relevant for systems using X.25 networking.

  1. CVE-2026-31417: Linux X.25 fraglen overflow and reset fix explained

    A newly published Linux kernel CVE is drawing attention for a deceptively small reason: the X.25 networking stack could let one internal packet counter grow past its safe bounds, and the fix now requires both an overflow check and a reset during queue cleanup. Microsoft’s Security Update Guide...
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    • cve-2026-31417 kernel hardening linux kernel security x.25 networking
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    • Forum: Security Alerts