CVE-2026-53001
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/14203f9edf944b3fb63faadd62f38452421ecdfc ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/14203f9edf944b3fb63faadd62f38452421ecdfcPatch
- https://git.kernel.org/stable/c/689a91ff18d6448d94c1ab7c076fecdb2b668befPatch
- https://git.kernel.org/stable/c/76160e04440c9698b989dbd9492a7ec4f520c9eePatch
- https://git.kernel.org/stable/c/7eaf9c740f33230cb224dc265f3c69f8531ff57bPatch
- https://git.kernel.org/stable/c/9a109751b297b0f2135495749ef5a18ba31ec7d4Patch
- https://git.kernel.org/stable/c/b6fe26f86a1649f84e057f3f15605b08eda15497Patch
- https://git.kernel.org/stable/c/cbeb259f31382de70a70a59ffd0e66f5e80d9818Patch
- https://git.kernel.org/stable/c/fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9Patch