CVE-2026-72347

CVE CVE-2026-72347EUVD EUVD-2026-59246Published 2026-08-15T05:55:51.000ZLast changed 2026-08-17T05:43:05.000ZCVSS 7.3

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_connmark: reject invalid shift parameters Revision 2 of the CONNMARK target accepts user-controlled shift parameters and applies them to 32-bit mark values in connmark_tg_shift(). A shift_bits value of 32 or more triggers an undefined-shift bug when the rule is evaluated. Invalid shift_dir values are also accepted and silently fall back to the left-shift path. Reject invalid revision-2 shift parameters in connmark_tg_check() so malformed rules fail at installation time, before they can reach the packet path.

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 4.17; 472a73e00757b971d613d796374d2727b2e4954d <c3fa852d117b3fda72265e4230e3967db4a74fcf; patch: 6.18.40; patch: 5.15.212; 472a73e00757b971d613d796374d2727b2e4954d <1b47026fb4b35bac850ad6e8a4ad7fc018e09ebc; patch: 7.2; patch: 7.1.5; patch: 6.6.145; 472a73e00757b971d613d796374d2727b2e4954d <230173cc6105bdfb2696d37e6e56687b003fbe63; 472a73e00757b971d613d796374d2727b2e4954d <d8ce63d928b457fba7ed1e302492dfd32293671c; 472a73e00757b971d613d796374d2727b2e4954d <4eef84b09a3836919360c4232b0f16651a155eec; 472a73e00757b971d613d796374d2727b2e4954d <8ace320ac4416f5e5fbcd065309fb2dfcce787b0; patch: 6.1.178; 472a73e00757b971d613d796374d2727b2e4954d <9657bb11a6376ab0a79f05d433713d6944111e9d; patch: 6.12.97; patch: 0

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

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Linux — Linux

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