{"id":"CVE-2022-38667","url":"https://www.cyber-defence.io/tools/cve/CVE-2022-38667","generatedAt":"2026-10-27T21:08:30.369Z","title":"HTTP applications (servers) based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used.","description":"HTTP applications (servers) based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used. The HTTP parser supports HTTP pipelining, but the asynchronous Connection layer is unaware of HTTP pipelining. Specifically, the Connection layer is unaware that it has begun processing a later request before it has finished processing an earlier request.","published":"2022-08-22T20:15:09.000Z","lastModified":"2026-06-17T04:56:58.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["crowcpp/crow"],"epss":{"score":0.03128,"percentile":0.87777,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (3.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://cwe.mitre.org/data/definitions/372.html","tags":["Technical Description","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/0xhebi/CVEs/blob/main/Crow/CVE-2022-38667.md","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/CrowCpp/Crow/pull/524","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://gynvael.coldwind.pl/?id=753","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://cwe.mitre.org/data/definitions/372.html","tags":["Technical Description","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/0xhebi/CVEs/blob/main/Crow/CVE-2022-38667.md","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/CrowCpp/Crow/pull/524","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gynvael.coldwind.pl/?id=753","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-38667","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."}