CVE-2025-46805mediumCWE-367

CVE-2025-46805: medium-severity vulnerability in screen

Screen has a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.7epss 0.2%
Screen version 5.0.0 and older version 4 releases have a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root.
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
screen
Related CVEs — screen

In the same product, most dangerous first.

CVE-2025-46803MEDIUMScreen creates by default world-writable PTYsEPSS 0.3%CVE-2025-23395HIGHLocal root exploit via `logfile_reopen()` in screen 5.0.0 with setuid-root bit setEPSS 0.3%CVE-2025-46804LOWScreen 5.0.0 and older versions allow file existence tests when installed setuid-rootEPSS 0.2%