{"id":"CVE-2025-59530","revision":"aad24da0c3944bcdb787735f11d9978a","records":[{"revision":"aad24da0c3944bcdb787735f11d9978a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-59530","aliases":[],"title":"quic-go has Client Crash Due to Premature HANDSHAKE_DONE Frame","description":"quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames.","state":0,"publishedAt":"2025-10-10T16:09:55.227+00:00","modifiedAt":"2025-10-10T16:31:47.457+00:00","affected":[{"ecosystem":"Vendor product","name":"quic-go","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"quic-go\",\n                    \"product\": \"quic-go\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.49.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 0.5.0, < 0.54.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/quic-go/quic-go/security/advisories/GHSA-47m2-4cr7-mhcw","https://github.com/quic-go/quic-go/pull/5354","https://github.com/quic-go/quic-go/blob/v0.55.0/connection.go#L2682-L2685"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-59530","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-59530","identifiers":["CVE-2025-59530"]},"retained":false,"historicalAffected":[]}],"coverage":[]}