| Name | CVE-2025-46803 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| screen (PTS) | bullseye | 4.8.0-6 | fixed |
| bookworm | 4.9.0-4 | fixed |
| sid, trixie | 4.9.1-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| screen | source | (unstable) | (not affected) | | | |
Notes
- screen <not-affected> (Vulnerable code only introduced in Scren v5 branch)
Introduced with: https://git.savannah.gnu.org/cgit/screen.git/commit/?id=78a961188f7da528c7cefcc63e07f35f04e69a93 (v.5.0.0)
Fixed by: https://git.savannah.gnu.org/cgit/screen.git/commit/?id=d5d7bf43f3842e8b62d5f34eb4b031de7c8098c1
https://www.openwall.com/lists/oss-security/2025/05/12/1