{"id":"CVE-2022-30780","aliases":["DEBIAN-CVE-2022-30780","EUVD-2022-52604","GHSA-43hv-3rv7-ch5p","UBUNTU-CVE-2022-30780"],"status":"published","title":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU...","description":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.","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":"2026-11-10","score":0.57194,"percentile":0.9908,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-400","CWE-682"],"published":"2022-06-11T14:40:53Z","modified":"2026-10-28T02:30:32Z","exploits":[{"source":"pocgithub","id":"p0dalirius/CVE-2022-30780-lighttpd-denial-of-service","title":"p0dalirius/CVE-2022-30780-lighttpd-denial-of-service","date":"2022-05-18","url":"https://github.com/p0dalirius/CVE-2022-30780-lighttpd-denial-of-service"},{"source":"pocgithub","id":"xiw1ll/CVE-2022-30780_Checker","title":"xiw1ll/CVE-2022-30780_Checker","date":"2024-07-18","url":"https://github.com/xiw1ll/CVE-2022-30780_Checker"}],"fixes":[{"ecosystem":"Debian:12","package":"lighttpd","fixed_in":["1.4.59-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"lighttpd","fixed_in":["1.4.59-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"lighttpd","fixed_in":["1.4.59-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.59-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.59-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.59-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.35-4ubuntu1","1.4.35-4ubuntu2","1.4.35-4ubuntu2.1","1.4.35-4ubuntu2.1+esm1"]}],"products":[{"vendor":"lighttpd","product":"lighttpd"}],"references":[{"url":"https://github.com/lighttpd/lighttpd1.4","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","package","report"]},{"url":"https://redmine.lighttpd.net/issues/3059","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Vendor Advisory","web","report"]},{"url":"https://podalirius.net/en/cves/2022-30780/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web","report"]},{"url":"https://github.com/p0dalirius/CVE-2022-30780-lighttpd-denial-of-service","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","package","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-30780","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-43hv-3rv7-ch5p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/30xxx/CVE-2022-30780.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-30780","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-30780","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-30780","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-30780","description":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.","status":"published","published":"2022-06-11T14:40:53Z","modified":"2024-08-03T06:56:14.103Z","updated_at":"2026-11-02T14:34:30.842561Z"}],"euvd":[{"id":"EUVD-2022-52604","description":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.","status":"published","published":"2022-06-11T14:40:53Z","modified":"2024-08-03T06:56:14Z","updated_at":"2026-11-03T03:25:35.220299Z"}],"ghsa":[{"id":"GHSA-43hv-3rv7-ch5p","title":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU...","description":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.","status":"published","published":"2022-06-12T00:00:44Z","modified":"2023-01-27T05:04:22Z","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-400"],"updated_at":"2026-11-02T14:42:26.749233Z"}],"nvd":[{"id":"CVE-2022-30780","description":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.","status":"published","published":"2022-06-11T15:15:08.807Z","modified":"2026-06-17T04:44:16.91Z","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"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-682"],"updated_at":"2026-11-02T14:07:21.62951Z"}],"osv":[{"id":"DEBIAN-CVE-2022-30780","description":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.","status":"published","published":"2022-06-11T15:15:08.807Z","modified":"2026-11-03T08:02:18.005656181Z","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":"2026-11-03T08:24:50.542442Z"},{"id":"UBUNTU-CVE-2022-30780","description":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.","status":"published","published":"2022-06-11T15:15:00Z","modified":"2026-04-22T13:21:51.977347Z","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":"2026-11-02T16:53:53.899276Z"},{"id":"CVE-2022-30780","description":"Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.","status":"published","published":"2022-06-11T14:40:53Z","modified":"2026-10-28T02:30:32.288638227Z","updated_at":"2026-11-02T15:44:25.516981Z"}]}}