CVE-2026-53001
netfilter: xtables: restrict several matches to inet family
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
24 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
Affected products
Linux · LinuxWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://git.kernel.org/stable/c/14203f9edf944b3fb63faadd62f38452421ecdfchttps://git.kernel.org/stable/c/689a91ff18d6448d94c1ab7c076fecdb2b668befhttps://git.kernel.org/stable/c/76160e04440c9698b989dbd9492a7ec4f520c9eehttps://git.kernel.org/stable/c/7eaf9c740f33230cb224dc265f3c69f8531ff57bhttps://git.kernel.org/stable/c/9a109751b297b0f2135495749ef5a18ba31ec7d4https://git.kernel.org/stable/c/b6fe26f86a1649f84e057f3f15605b08eda15497https://git.kernel.org/stable/c/cbeb259f31382de70a70a59ffd0e66f5e80d9818https://git.kernel.org/stable/c/fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9