CVE-2025-71239
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
audit: add fchmodat2() to change attributes class
fchmodat2(), introduced in version 6.6 is currently not in the change attribute class of audit. Calling fchmodat2() to change a file attribute in the same fashion than chmod() or fchmodat() will bypass audit rules such as:
-w /tmp/test -p rwa -k test_rwa
The current patch adds fchmodat2() to the change attributes class.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.12%
- Percentil entre todas las CVEs puntuadas: 2
- Fecha de la puntuación: 6/10/2026
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)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/3e762a03713e8c25ca0108c075d662c897fc0623
- https://git.kernel.org/stable/c/4f493a6079b588cf1f04ce5ed6cdad45ab0d53dc
- https://git.kernel.org/stable/c/4fed776ca86378da7dd743a7b648e20b025ba8ef
- https://git.kernel.org/stable/c/91e27bc79c3bca93c06bf5a471d47df9a35b3741
- https://git.kernel.org/stable/c/c4334c0d0e7d6f02ed93756fd4ba807e3d00c05f
- https://www.bencteux.fr/posts/missing_syscalls_audit/
JSON original (NVD)
Mostrar
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\naudit: add fchmodat2() to change attributes class\n\nfchmodat2(), introduced in version 6.6 is currently not in the change\nattribute class of audit. Calling fchmodat2() to change a file\nattribute in the same fashion than chmod() or fchmodat() will bypass\naudit rules such as:\n\n-w /tmp/test -p rwa -k test_rwa\n\nThe current patch adds fchmodat2() to the change attributes class."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\naudit: añadir fchmodat2() a la clase de cambio de atributos\n\nfchmodat2(), introducido en la versión 6.6, actualmente no está en la clase de cambio de atributos de audit. Llamar a fchmodat2() para cambiar un atributo de archivo de la misma manera que chmod() o fchmodat() eludirá las reglas de audit como:\n\n-w /tmp/test -p rwa -k test_rwa\n\nEl parche actual añade fchmodat2() a la clase de cambio de atributos."
}
],
"lastModified": "2026-06-17T10:03:56.177",
"configurations": [
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"nodes": [
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