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    CVE-2025-46803

    The default mode of pseudo terminals (PTYs) allocated by Screen was changed from 0620 to 0622, thereby allowing anyone to write to any Screen PTYs in the system.

    Published:May 13, 2025
    Last Modified:Apr 15, 2026
    EPS:May 26, 2025
    EPSS Score:0.00045
    CVSS Score:5

    Affected Products

    Vendor
    Gnu
    Product
    Screen

    Exploits

    No exploit reference

    Related CVEs

    CVE-2025-46802 (CVSS 5.3) — For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session…
    CVE-2025-46804 (CVSS 2) — A minor information leak when running Screen with setuid-root privileges allows unprivileged users to deduce i…
    CVE-2023-24626 (CVSS 6.5) — socket.c in GNU Screen through 4.9.0, when installed setuid or setgid (the default on platforms such as Arch L…
    CVE-2021-26937 (CVSS 9.8) — encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write acc…
    CVE-2020-9366 (CVSS 9.8) — A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially cr…
    CVE-2017-5618 (CVSS 7.8) — GNU screen before 4.5.1 allows local users to modify arbitrary files and consequently gain root privileges by …
    CVE-2009-1214 (CVSS 4.9) — GNU screen 4.0.3 creates the /tmp/screen-exchange temporary file with world-readable permissions, which might …
    CVE-2007-3048 (CVSS 7.2) — GNU screen 4.0.3 allows local users to unlock the screen via a CTRL-C sequence at the password prompt. NOTE: …
    CVE-2006-4573 (CVSS 2.6) — Multiple unspecified vulnerabilities in the "utf8 combining characters handling" (utf8_handle_comb function in…
    CVE-2003-0972 (CVSS 10) — Integer signedness error in ansi.c for GNU screen 4.0.1 and earlier, and 3.9.15 and earlier, allows local user…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High