{"cve":"CVE-2022-4170","nvd":{"published":"2022-12-09T18:15:20.327","modified":"2026-06-17T05:20:09.633","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-74"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=2151597","https://security.gentoo.org/glsa/202310-20","https://www.openwall.com/lists/oss-security/2022/12/05/1","https://bugzilla.redhat.com/show_bug.cgi?id=2151597","https://security.gentoo.org/glsa/202310-20"],"products":["fedoraproject:extra_packages_for_enterprise_linux","fedoraproject:fedora","rxvt-unicode_project:rxvt-unicode"],"source":"nvd","synced_at":"2026-10-19T21:37:28.463369388+00:00"},"epss":{"cve":"CVE-2022-4170","score":0.02222,"percentile":0.82693,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}