{"cve":"CVE-2022-3821","nvd":{"published":"2022-11-08T22:15:16.700","modified":"2026-10-14T14:17:27.680","status":"Modified","description":"An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-193"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=2139327","https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e","https://github.com/systemd/systemd/issues/23928","https://github.com/systemd/systemd/pull/23933","https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html"],"products":["fedoraproject:fedora","redhat:enterprise_linux","systemd_project:systemd"],"source":"nvd","synced_at":"2026-10-19T21:37:08.729216836+00:00"},"epss":{"cve":"CVE-2022-3821","score":0.00429,"percentile":0.36928,"date":"2026-10-26"},"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."]}