Home/CVE/Screen 5.0.0 when it runs with setuid-root privileges does not drop privileges while operating on a user supplied path.
CVE

CVE-2025-23395

Screen 5.0.0 when it runs with setuid-root privileges does not drop privileges while operating on a user supplied path.

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.

HIGH · CVSS 7.8 EPSS 0.00066
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-271Privilege Dropping / Lowering Errors
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · meissner@suse.de
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 May 2025 · 04:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-23395
https://www.openwall.com/lists/oss-security/2025/05/12/1
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