CVE-2026-5398

HIGH

8.4

Descripcion

The implementation of TIOCNOTTY failed to clear a back-pointer from the structure representing the controlling terminal to the calling process' session. If the invoking process then exits, the terminal structure may end up containing a pointer to freed memory. A malicious process can abuse the dangling pointer to grant itself root privileges.

Detalles CVE

Puntuacion CVSS v3.18.4

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado4/22/2026

Ultima modificacion4/22/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-416

Referencias

https://security.freebsd.org/advisories/FreeBSD-SA-26:10.tty.asc(secteam@freebsd.org)

Correlaciones IOC

Sin correlaciones registradas

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