{"cve":"CVE-2021-29376","nvd":{"published":"2021-03-30T07:15:12.007","modified":"2026-06-17T03:47:33.983","status":"Modified","description":"ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":[],"references":["http://www.eterna.com.au/ircii/","http://www.openwall.com/lists/oss-security/2021/03/30/4","https://lists.debian.org/debian-lts-announce/2021/08/msg00022.html","https://lists.debian.org/debian-lts-announce/2021/08/msg00023.html","https://www.openwall.com/lists/oss-security/2021/03/24/2"],"products":["debian:debian_linux","eterna:ircii"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-29376","score":0.02262,"percentile":0.82989,"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."]}