CVE-2026-98321
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_nat: unregister and release hooks on error
If nf_hook_entries_insert_raw() fails, the NAT hooks get never released, resulting in a memleak.
Postpone setting nat_proto_net->nat_hook_ops when the hooks are registered to simplify the error path to decide whether the nat hooks need unwinding.
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
FIRST aún no ha puntuado esta CVE (habitual en CVEs muy recientes o rechazadas).
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-98321",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "1cd472bf036ca038e783ef5f058f54e45b7e8180",
"lessThan": "79084567cd082fb4482e1ea457580e7d6504dd99",
"versionType": "git"
},
{
"status": "affected",
"version": "1cd472bf036ca038e783ef5f058f54e45b7e8180",
"lessThan": "df80342f4bfc023ad7d6703df5e27f583ff0cb8d",
"versionType": "git"
},
{
"status": "affected",
"version": "1cd472bf036ca038e783ef5f058f54e45b7e8180",
"lessThan": "cbdd39ce42530a193c56beb206a3356cb6d01016",
"versionType": "git"
}
],
"programFiles": [
"net/netfilter/nf_nat_core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3-rc4",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/netfilter/nf_nat_core.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-10-06T09:18:24.117",
"references": [
{
"url": "https://git.kernel.org/stable/c/79084567cd082fb4482e1ea457580e7d6504dd99",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/cbdd39ce42530a193c56beb206a3356cb6d01016",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/df80342f4bfc023ad7d6703df5e27f583ff0cb8d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_nat: unregister and release hooks on error\n\nIf nf_hook_entries_insert_raw() fails, the NAT hooks get never released,\nresulting in a memleak.\n\nPostpone setting nat_proto_net->nat_hook_ops when the hooks are\nregistered to simplify the error path to decide whether the nat hooks\nneed unwinding."
}
],
"lastModified": "2026-10-06T09:18:24.117",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}