CVE-2025-38676
Estado: ModificadaAlta (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
iommu/amd: Avoid stack buffer overflow from kernel cmdline
While the kernel command line is considered trusted in most environments, avoid writing 1 byte past the end of "acpiid" if the "str" argument is maximum length.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.40%
- Percentil entre todas las CVEs puntuadas: 32
- Fecha de la puntuación: 5/10/2026
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).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation90 % - Impacto principal
T1059Command and Scripting Interpreterexecution75 %
Buffer overflow local (AV:L, PR:L) en kernel permite escalada de privilegios. Cmdline confiable pero desbordamiento a buffer en pila genera code execution como root.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (2)
CWE
- CWE-787
Referencias
- https://git.kernel.org/stable/c/0ad8509b468fa1058f4f400a1829f29e4ccc4de8
- https://git.kernel.org/stable/c/4bdb0f78bddbfa77d3ab458a21dd9cec495d317a
- https://git.kernel.org/stable/c/736db11c86f03e717fc4bf771d05efdf10d23acb
- https://git.kernel.org/stable/c/8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdec
- https://git.kernel.org/stable/c/8f80c633cba144f721d38d9380f23d23ab7db10e
- https://git.kernel.org/stable/c/9ff52d3af0ef286535749e14e3fe9eceb39a8349
- https://git.kernel.org/stable/c/a732502bf3bbe859613b6d7b2b0313b11f0474ac
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
JSON original (NVD)
Mostrar
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