CVE-2026-23422
Estado: ModificadaAlta (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler
Commit 31a7a0bbeb00 ("dpaa2-switch: add bounds check for if_id in IRQ handler") introduces a range check for if_id to avoid an out-of-bounds access. If an out-of-bounds if_id is detected, the interrupt status is not cleared. This may result in an interrupt storm.
Clear the interrupt status after detecting an out-of-bounds if_id to avoid the problem.
Found by an experimental AI code review agent at Google.
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: 0.12%
- 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).
🎯 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 escalation85 % - Impacto principal
T1499.004Application or System Exploitationimpact75 %
Acceso local sin interacción (AV:L/PR:L/UI:N) permite elevar privilegios manipulando if_id en IRQ handler del kernel. El impacto primario es DoS por tormenta de interrupciones no limpiada.
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 (1)
CWE
- CWE-787
Referencias
- https://git.kernel.org/stable/c/00f42ace446f1e4bf84988f2281131f52cd32796
- https://git.kernel.org/stable/c/28fd8ac1d49389cb230d712116f54e27ebec11b8
- https://git.kernel.org/stable/c/74badb9c20b1a9c02a95c735c6d3cd6121679c93
- https://git.kernel.org/stable/c/7def51cb9fb8b8d5342443372b8cf28d8fbd7f3d
- https://git.kernel.org/stable/c/b5bababe7703a7322bc59b803ab1587887a2a5e4
- https://git.kernel.org/stable/c/c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e
- https://git.kernel.org/stable/c/fa4412cdc5178a48799bafcb8af28fd2fbf3d703
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
JSON original (NVD)
Mostrar
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