CVE-2026-72417

CVE CVE-2026-72417EUVD EUVD-2026-59316Published 2026-08-15T05:56:37.000ZLast changed 2026-08-17T05:43:57.000ZCVSS 9.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: Validate iph->ihl in nf_flow_ip4_tunnel_proto() Add sanity check for iph->ihl field in nf_flow_ip4_tunnel_proto() before using it to compute the header size, avoiding out-of-bounds access with malformed IP headers. While at it, use iph->protocol instead of the hardcoded IPPROTO_IPIP constant when setting ctx->tun.proto and reference ctx->tun.hdr_size when updating ctx->offset.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 6.19; patch: 7.1.5; ab427db17885814069bae891834f20842f0ac3a4 <84460b644329e25809b4a6d9279d6359d7fd8ebc; patch: 0; ab427db17885814069bae891834f20842f0ac3a4 <025a41e76b51fbc7b8eaa5bacbaa9621d00e6aa7; patch: 7.2

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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