CVE-2025-46803

Screen creates by default world-writable PTYs

CVSS 5.1 MEDIUMEPSS 0.2%CWE-276

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

26 May 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Affected products

screen

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References

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-46803 https://www.openwall.com/lists/oss-security/2025/05/12/1 http://www.openwall.com/lists/oss-security/2025/05/13/6