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Fencer Intel
low 3.3

CVE-2025-46804 json

Screen 5.0.0 and older versions allow file existence tests when installed setuid-root

published last yr. modified 4mo ago also EUVD-2025-16307

cvss
3.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits
0
none known

Summary

A minor information leak when running Screen with setuid-root privileges allows unprivileged users to deduce information about a path that would otherwise not be available.

Affected are older Screen versions, as well as version 5.0.0.

Patch / fix

  • screen Debian 14, Debian 13 4.9.1-3

debian advisories DEBIAN-CVE-2025-46804

  • screen Ubuntu 22.04 LTS 4.9.0-1ubuntu0.1
  • screen Ubuntu 24.04 LTS 4.9.1-1ubuntu1

ubuntu advisories UBUNTU-CVE-2025-46804

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • screen openSUSE Tumbleweed 5.0.2-1.1

opensuse advisories openSUSE-SU-2026:12373-1

  • screen Alpine 3.20, Alpine 3.19, Alpine 3.18 4.9.1_git20250512-r0
  • screen Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 5.0.1-r0

alpine advisories ALPINE-CVE-2025-46804

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • screen Arch Linux 5.0.0-3

arch linux advisories AVG-2862

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-46804 updated cvss 3.3

screen: File Existence Tests via Socket Lookup Error Messages

  • Red Hat Enterprise Linux 6 screen Red Hat Enterprise Linux 7 screen
    affected: workaround, no fix planned “No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA 4.0 2.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 4.0 2.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.