CVE-2025-23395: fallo de gravedad alta en screen
Local root exploit via `logfile_reopen()` in screen 5.0.0 with setuid-root bit set
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.3epss 0.3%
Screen 5.0.0 when it runs with setuid-root privileges does not drop privileges while operating on a user supplied path. This allows unprivileged users to create files in arbitrary locations with `root` ownership, the invoking user's (real) group ownership and file mode 0644. All data written to the Screen PTY will be logged into this file, allowing to escalate to root privileges
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
screenCVEs relacionadas — screen
En el mismo producto, de las más peligrosas a las menos.
CVE-2025-46803MEDIUMScreen creates by default world-writable PTYsEPSS 0.3%CVE-2025-46804LOWScreen 5.0.0 and older versions allow file existence tests when installed setuid-rootEPSS 0.2%CVE-2025-46805MEDIUMScreen has a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-rootEPSS 0.2%