{"cve":"CVE-2021-4183","nvd":{"published":"2021-12-30T22:15:10.247","modified":"2026-06-17T04:19:10.410","status":"Modified","description":"Crash in the pcapng file parser in Wireshark 3.6.0 allows denial of service via crafted capture file","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-125"],"references":["https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4183.json","https://gitlab.com/wireshark/wireshark/-/issues/17755","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/","https://security.gentoo.org/glsa/202210-04"],"products":["fedoraproject:fedora","oracle:http_server","oracle:zfs_storage_appliance_kit","wireshark:wireshark"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-4183","score":0.01528,"percentile":0.74716,"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."]}