# CVE-2022-4170: rxvt-unicode: The rxvt-unicode package is vulnerable to a remote code execution, in the Perl background extension, when an attacker...

CVE-2022-4170 is fixed in rxvt-unicode on 1 platform, first by DEBIAN-CVE-2022-4170, released December 9, 2022. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2022-4170
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0222
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 9, 2022

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | rxvt-unicode Debian 13.5 (trixie) | 9.31-1 | [DEBIAN-CVE-2022-4170](https://patchblox.com/security/data/fix/linux/debian-cve-2022-4170.md) | Dec 9, 2022 |
| Linux | rxvt-unicode Debian 14 | 9.31-1 | [DEBIAN-CVE-2022-4170](https://patchblox.com/security/data/fix/linux/debian-cve-2022-4170.md) | Dec 9, 2022 |

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