Answer in brief
CVE-2026-53001 records a Unknown severity vulnerability in netfilter: xtables: restrict several matches to inet family. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ab4f21e6fb1c09b13c4c3cb8357babe8223471bd <14203f9edf944b3fb63faadd62f38452421ecdfc || >=ab4f21e6fb1c09b13c4c3cb8357babe8223471bd <7eaf9c740f33230cb224dc265f3c69f8531ff57b || >=ab4f21e6fb1c09b13c4c3cb8357babe8223471bd <9a109751b297b0f2135495749ef5a18ba31ec7d4 || >=ab4f21e6fb1c09b13c4c3cb8357babe8223471bd <cbeb259f31382de70a70a59ffd0e66f5e80d9818 || >=ab4f21e6fb1c09b13c4c3cb8357babe8223471bd <689a91ff18d6448d94c1ab7c076fecdb2b668bef || >=ab4f21e6fb1c09b13c4c3cb8357babe8223471bd <76160e04440c9698b989dbd9492a7ec4f520c9ee || >=ab4f21e6fb1c09b13c4c3cb8357babe8223471bd <fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9 || >=ab4f21e6fb1c09b13c4c3cb8357babe8223471bd <b6fe26f86a1649f84e057f3f15605b08eda15497 | 14203f9edf944b3fb63faadd62f38452421ecdfc, 7eaf9c740f33230cb224dc265f3c69f8531ff57b, 9a109751b297b0f2135495749ef5a18ba31ec7d4, cbeb259f31382de70a70a59ffd0e66f5e80d9818, 689a91ff18d6448d94c1ab7c076fecdb2b668bef, 76160e04440c9698b989dbd9492a7ec4f520c9ee, fa88161ef56e29bdaa05cc89dbc4ee221e94bfe9, b6fe26f86a1649f84e057f3f15605b08eda15497 |
| Linux/Linuxgeneric | 2.6.28 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.