CVE-2026-64148

Estado: AnalizadaAlta (7.5)—

In the Linux kernel, the following vulnerability has been resolved:

pds_core: fix error handling in pdsc_devcmd_wait

Fix two cases where pdsc_devcmd_wait() returns stale success from the completion register instead of an error:

Both errors now propagate to pdsc_devcmd_locked() which queues health_work for recovery.

Detalles técnicos trazas, registros y código del informe original

1. FW crash: If firmware stops running, the wait loop breaks early with
   running=false. The condition "if ((!done || timeout) && running)" is
   false, so error handling is bypassed and stale status is returned.
   Check !running first and return -ENXIO.

2. Timeout: If a command times out, err is set to -ETIMEDOUT but then
   overwritten by pdsc_err_to_errno(status) which reads stale status.
   Return -ETIMEDOUT immediately after cleaning up.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.47%
Percentil entre todas las CVEs puntuadas: 38
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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access45 %
Impacto principalT1499 Endpoint Denial of Serviceimpact70 %

Vuln. en kernel Linux (AV:N, AC:L, PR:N, UI:N) que causa DoS por manejo deficiente de errores en pdsc_devcmd_wait; timeout/crash de firmware genera A:H, sin confirmación de explotación remota activa.

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

Filter Network Traffic Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Application Isolation and Sandboxing

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-835

Referencias

JSON original (NVD)

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