CVE-2026-53001

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: restrict several matches to inet family This is a partial revert of: commit ab4f21e6fb1c ("netfilter: xtables: use NFPROTO_UNSPEC in more extensions") to allow ipv4 and ipv6 only. - xt_mac - xt_owner - xt_physdev These extensions are not used by ebtables in userspace. Moreover, xt_realm is only for ipv4, since dst->tclassid is ipv4 specific.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)

Published

2026-06-24

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/14203f9edf944b3fb63faadd62f38452421ecdfc
• https://git.kernel.org/stable/c/689a91ff18d6448d94c1ab7c076fecdb2b668bef
• https://git.kernel.org/stable/c/76160e04440c9698b989dbd9492a7ec4f520c9ee
• https://git.kernel.org/stable/c/7eaf9c740f33230cb224dc265f3c69f8531ff57b
• https://git.kernel.org/stable/c/9a109751b297b0f2135495749ef5a18ba31ec7d4

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