🛡️ CVE-2022-4170 — extra-packages-for-enterprise-linux

🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-74 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

The rxvt-unicode package is vulnerable to a remote code execution, in the Perl background extension, when an attacker can control the data written to the user's terminal and certain options are set.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2022-4170 is recorded against 3 packages.

  • extra-packages-for-enterprise-linux
  • fedora
  • rxvt-unicode

Timeline and source

Published on 9 December 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

bugzilla.redhat.com
security.gentoo.org
www.openwall.com
bugzilla.redhat.com
security.gentoo.org
www.openwall.com

CVE-2022-4170 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-74
Public Exploit ✅ No
Source NVD
Published 2022-12-09
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
extra-packages-for-enterprise-linux — —
fedora — —
rxvt-unicode — —

References

Similar Threats

Exploit Protection

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