CVE-2026-72348
CVE CVE-2026-72348EUVD EUVD-2026-59247Published 2026-08-15T05:55:52.000ZLast changed 2026-08-17T05:43:06.000ZCVSS 9.1
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop The ah, hbh and rt matches check that the fixed extension header is present, then use the header length field to derive the advertised extension header length for matching. For the ah match, add the missing advertised-length check. For hbh and rt, update the existing advertised-length checks. In all three cases, set hotdrop to true before returning false when the advertised extension header length exceeds the available skb data. Returning false treats the packet as a rule mismatch. Set hotdrop to true and drop malformed packets so they cannot bypass rules intended to drop packets with these IPv6 extension headers.
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2fd89a50a9783eed8ed23866b11c8b3d8779a7a8; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <43ccc20b5a733226417832cf16ef45322e594990; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d5e39e5eb6b30bc4a3bb7aba54c293cf36a806c7; patch: 0; patch: 7.1.5; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3578b6d92a5b1e603ae6e8c8f5538a709f03aba4; patch: 6.6.145; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f775fcf384b06f35b612f78fa5601fee99eb6513; patch: 6.18.40; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3d441be2b1c5e98167302fa1c7b61960a067b112; patch: 6.1.178; patch: 7.2; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f16d856b6af5fd0e7cb0b0212f70825b599ef72e; patch: 6.12.97; patch: 5.15.212; patch: 5.10.261; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fc416870100cf16d5b9495199355a679c3a02d48; 2.6.12
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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