{"id":"CVE-2022-30780","url":"https://www.cyber-defence.io/tools/cve/CVE-2022-30780","generatedAt":"2026-11-05T00:17:37.189Z","title":"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.","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.","published":"2022-06-11T15:15:09.000Z","lastModified":"2026-06-17T04:44:17.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-682"],"affected":["lighttpd/lighttpd"],"epss":{"score":0.57194,"percentile":0.99074,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 57.2%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://github.com/lighttpd/lighttpd1.4","tags":["Product","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/p0dalirius/CVE-2022-30780-lighttpd-denial-of-service","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://podalirius.net/en/cves/2022-30780/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://redmine.lighttpd.net/issues/3059","tags":["Issue Tracking","Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/lighttpd/lighttpd1.4","tags":["Product","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/p0dalirius/CVE-2022-30780-lighttpd-denial-of-service","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://podalirius.net/en/cves/2022-30780/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://redmine.lighttpd.net/issues/3059","tags":["Issue Tracking","Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-30780","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}