{"id":"CVE-2024-45396","aliases":["EUVD-2024-41457","GHSA-mp3c-h5gg-mm6p"],"status":"published","title":"Quicly assertion failures","description":"Quicly is an IETF QUIC protocol implementation. Quicly up to commtit d720707 is susceptible to a denial-of-service attack. A remote attacker can exploit these bugs to trigger an assertion failure that crashes process using quicly. The vulnerability is addressed with commit 2a95896104901589c495bc41460262e64ffcad5c.","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":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00585,"percentile":0.48242,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-617"],"published":"2024-10-11T14:36:38Z","modified":"2026-10-28T02:30:59Z","products":[{"vendor":"dena","product":"quicly"},{"vendor":"h2o","product":"quicly"},{"vendor":"h2o_project","product":"quicly"}],"references":[{"url":"https://github.com/h2o/quicly/security/advisories/GHSA-mp3c-h5gg-mm6p","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory"]},{"url":"https://github.com/h2o/quicly/commit/2a95896104901589c495bc41460262e64ffcad5c","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45396.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-45396","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2024-45396","title":"Quicly assertion failures","description":"Quicly is an IETF QUIC protocol implementation. Quicly up to commtit d720707 is susceptible to a denial-of-service attack. A remote attacker can exploit these bugs to trigger an assertion failure that crashes process using quicly. The vulnerability is addressed with commit 2a95896104901589c495bc41460262e64ffcad5c.","status":"published","published":"2024-10-11T14:36:38.172Z","modified":"2024-10-15T16:11:05.956Z","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":"cna"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:34:07.831255Z"}],"euvd":[{"id":"EUVD-2024-41457","description":"Quicly is an IETF QUIC protocol implementation. Quicly up to commtit d720707 is susceptible to a denial-of-service attack. A remote attacker can exploit these bugs to trigger an assertion failure that crashes process using quicly. The vulnerability is addressed with commit 2a95896104901589c495bc41460262e64ffcad5c.","status":"published","published":"2024-10-11T14:36:38Z","modified":"2024-10-15T16:11:05Z","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":"2026-11-03T00:27:37.250145Z"}],"nvd":[{"id":"CVE-2024-45396","description":"Quicly is an IETF QUIC protocol implementation. Quicly up to commtit d720707 is susceptible to a denial-of-service attack. A remote attacker can exploit these bugs to trigger an assertion failure that crashes process using quicly. The vulnerability is addressed with commit 2a95896104901589c495bc41460262e64ffcad5c.","status":"published","published":"2024-10-11T15:15:04.457Z","modified":"2026-06-17T07:54:08.013Z","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":"secondary"},{"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-617"],"updated_at":"2026-11-02T14:10:31.879321Z"}],"osv":[{"id":"CVE-2024-45396","title":"Quicly assertion failures","description":"Quicly is an IETF QUIC protocol implementation. Quicly up to commtit d720707 is susceptible to a denial-of-service attack. A remote attacker can exploit these bugs to trigger an assertion failure that crashes process using quicly. The vulnerability is addressed with commit 2a95896104901589c495bc41460262e64ffcad5c.","status":"published","published":"2024-10-11T14:36:38.172Z","modified":"2026-10-28T02:30:59.478999174Z","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-617"],"updated_at":"2026-11-02T15:44:42.790566Z"}]}}