CVE-2026-98572
Estado: RecibidaSin puntuar—
Gravedad—Sin puntuar
Probabilidad de explotación0.21 %mayor que el 10 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado
En el kernel de Linux se ha resuelto la siguiente vulnerabilidad:
bpf: Corregir JMP inmediato JEQ/JNE en MIPS32
Se emitía una instrucción addu en lugar de addiu, lo que provocaba que el valor inmediato 1 se interpretara como el registro $at. Esto hacía que el resultado de la comparación fuera inválido cuando el operando inmediato era negativo. Cabe señalar que $at se asigna a BPF_REG_AX, que se utiliza para el cegado de constantes.
Corregir la instrucción para que use la forma inmediata.
Detectado con test_bpf en MIPS32r1 emulado por QEMU.
Traducción automática del texto original de NVD (en inglés).
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 0.21 %
- Percentil entre todas las CVEs puntuadas
- 10
- Fecha de la puntuación
- 20/10/2026
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
Mostrar las 6 referencias
- https://git.kernel.org/stable/c/1547e9f3a7d71971216e6dba30270cae13fe4e02
- https://git.kernel.org/stable/c/1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8
- https://git.kernel.org/stable/c/6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0
- https://git.kernel.org/stable/c/876ef04c75c2751acfd355606fca3eced71dec65
- https://git.kernel.org/stable/c/beeae92e70e705e90a0d6d9b3b8498ee3b92f495
- https://git.kernel.org/stable/c/db762fd96be225bd06161c9631160c755d891693
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-98572",
"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": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "1547e9f3a7d71971216e6dba30270cae13fe4e02",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "beeae92e70e705e90a0d6d9b3b8498ee3b92f495",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "876ef04c75c2751acfd355606fca3eced71dec65",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8",
"versionType": "git"
},
{
"status": "affected",
"version": "eb63cfcd2ee8ec3805f6881f43341f589c3d2278",
"lessThan": "db762fd96be225bd06161c9631160c755d891693",
"versionType": "git"
}
],
"programFiles": [
"arch/mips/net/bpf_jit_comp32.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/mips/net/bpf_jit_comp32.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-10-18T16:17:09.477",
"references": [
{
"url": "https://git.kernel.org/stable/c/1547e9f3a7d71971216e6dba30270cae13fe4e02",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/876ef04c75c2751acfd355606fca3eced71dec65",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/beeae92e70e705e90a0d6d9b3b8498ee3b92f495",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/db762fd96be225bd06161c9631160c755d891693",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix immediate JMP JEQ/JNE on MIPS32\n\nAn addu instruction was emitted instead of addiu, causing the immediate\nvalue 1 to be interpreted as register $at. This made the comparison\nresult invalid when the immediate operand was negative. Note that $at\nis mapped to BPF_REG_AX, which is used for constant blinding.\n\nFix the instruction to use the immediate form.\n\nFound with test_bpf on MIPS32r1 emulated by QEMU."
}
],
"lastModified": "2026-10-19T10:19:15.310",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}