{"id":"CVE-2020-23622","aliases":["EUVD-2022-6530","GHSA-c438-6f6r-pg8w"],"status":"published","title":"4thline cling uPnP protocol issue can lead to denial of service","description":"An issue in the UPnP protocol in 4thline cling 2.0.0 through 2.1.2 allows remote attackers to cause a denial of service via an unchecked CALLBACK parameter in the request header","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01156,"percentile":0.67276,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2022-08-15T19:10:38Z","modified":"2026-10-20T10:54:19Z","affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.fourthline.cling:cling-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"last_affected":"2.1.2"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.fourthline.cling:cling-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"last_affected":"2.1.2"}]}]}],"products":[{"vendor":"cling_project","product":"cling"}],"references":[{"url":"https://github.com/4thline/cling/issues/253","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix","web"]},{"url":"https://zh-cn.tenable.com/blog/cve-2020-12695-callstranger-vulnerability-in-universal-plug-and-play-upnp-puts-billions-of?tns_redirect=true","tags":["x_refsource_MISC","x_transferred","Not Applicable","article","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-23622","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c438-6f6r-pg8w"},{"url":"https://github.com/4thline/cling","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-23622","description":"An issue in the UPnP protocol in 4thline cling 2.0.0 through 2.1.2 allows remote attackers to cause a denial of service via an unchecked CALLBACK parameter in the request header","status":"published","published":"2022-08-15T19:10:38Z","modified":"2024-08-04T14:58:15.233Z","updated_at":"2026-11-02T14:35:49.209579Z"}],"euvd":[{"id":"EUVD-2022-6530","description":"An issue in the UPnP protocol in 4thline cling 2.0.0 through 2.1.2 allows remote attackers to cause a denial of service via an unchecked CALLBACK parameter in the request header","status":"published","published":"2022-08-15T19:10:38Z","modified":"2024-08-04T14:58:15Z","updated_at":"2026-11-03T03:07:21.209139Z"}],"ghsa":[{"id":"GHSA-c438-6f6r-pg8w","title":"4thline cling uPnP protocol issue can lead to denial of service","description":"An issue in the UPnP protocol in 4thline cling 2.0.0 through 2.1.2 allows remote attackers to cause a denial of service via an unchecked `CALLBACK` parameter in the request header. As of 2022, 4thline cling is no longer supported by the maintainers.","status":"published","published":"2022-08-16T00:00:22Z","modified":"2023-01-30T05:06:49Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:36:28.424013Z"}],"nvd":[{"id":"CVE-2020-23622","description":"An issue in the UPnP protocol in 4thline cling 2.0.0 through 2.1.2 allows remote attackers to cause a denial of service via an unchecked CALLBACK parameter in the request header","status":"published","published":"2022-08-15T20:15:09.04Z","modified":"2026-06-17T03:04:52.65Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:06:46.951463Z"}],"osv":[{"id":"CVE-2020-23622","description":"An issue in the UPnP protocol in 4thline cling 2.0.0 through 2.1.2 allows remote attackers to cause a denial of service via an unchecked CALLBACK parameter in the request header","status":"published","published":"2022-08-15T20:15:09.04Z","modified":"2026-10-20T10:54:19.010834684Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:15.534837Z"},{"id":"GHSA-c438-6f6r-pg8w","title":"4thline cling uPnP protocol issue can lead to denial of service","description":"An issue in the UPnP protocol in 4thline cling 2.0.0 through 2.1.2 allows remote attackers to cause a denial of service via an unchecked `CALLBACK` parameter in the request header. As of 2022, 4thline cling is no longer supported by the maintainers.","status":"published","published":"2022-08-16T00:00:22Z","modified":"2023-11-08T04:03:06.096989Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:46:44.571161Z"}]}}