Vulnerability · Published May 26, 2025 · Assigned by suse
CVE-2025-46803Screen creates by default world-writable PTYs
Medium 5.0
In plain English
A medium-severity incorrect default permissions in screen. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.0Medium
Exploit odds (30 days)0.3%top 73.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.21 | screen | 5.0.1-r0 | ALPINE-CVE-2025-46803 |
| Alpine:v3.22 | screen | 5.0.1-r0 | ALPINE-CVE-2025-46803 |
| Alpine:v3.23 | screen | 5.0.1-r0 | ALPINE-CVE-2025-46803 |
| Alpine:v3.24 | screen | 5.0.1-r0 | ALPINE-CVE-2025-46803 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| screen | 5.0 – through 5.0.0 |
Weakness: CWE-276 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N