{"id":"CVE-2025-24946","details":"The hash table used to manage connections in picoquic before b80fd3f uses a weak hash function, allowing remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs).","modified":"2026-08-12T03:51:09.914305536Z","published":"2025-02-20T00:00:00Z","database_specific":{"cna_assigner":"mitre","cwe_ids":["CWE-407"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/24xxx/CVE-2025-24946.json","unresolved_ranges":[{"extracted_events":[{"fixed":"b80fd3f5903279ae3e7714ee4109363d9ab4491a"}],"source":"AFFECTED_FIELD"},{"extracted_events":[{"fixed":"b80fd3f5903279ae3e7714ee4109363d9ab4491a"}],"source":"CPE_FIELD"},{"extracted_events":[{"fixed":"b80fd3f"}],"source":"DESCRIPTION"}]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/24xxx/CVE-2025-24946.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-24946"},{"type":"FIX","url":"https://github.com/private-octopus/picoquic/commit/b80fd3f5903279ae3e7714ee4109363d9ab4491a"},{"type":"PACKAGE","url":"https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/private-octopus/picoquic","events":[{"introduced":"0"},{"fixed":"b80fd3f5903279ae3e7714ee4109363d9ab4491a"}],"database_specific":{"source":"REFERENCES"}}],"versions":["draft-16-final"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-24946.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}