{"cve":"CVE-2024-53259","nvd":{"published":"2024-12-02T17:15:12.767","modified":"2026-06-17T08:08:42.437","status":"Deferred","description":"quic-go is an implementation of the QUIC protocol in Go. An off-path attacker can inject an ICMP Packet Too Large packet. Since affected quic-go versions used IP_PMTUDISC_DO, the kernel would then return a \"message too large\" error on sendmsg, i.e. when quic-go attempts to send a packet that exceeds the MTU claimed in that ICMP packet. By setting this value to smaller than 1200 bytes (the minimum MTU for QUIC), the attacker can disrupt a QUIC connection. Crucially, this can be done after completion of the handshake, thereby circumventing any TCP fallback that might be implemented on the application layer (for example, many browsers fall back to HTTP over TCP if they're unable to establish a QUIC connection). The attacker needs to at least know the client's IP and port tuple to mount an attack. This vulnerability is fixed in 0.48.2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-345"],"references":["https://github.com/quic-go/quic-go/commit/ca31dd355cbe5fc6c5807992d9d1149c66c96a50","https://github.com/quic-go/quic-go/pull/4729","https://github.com/quic-go/quic-go/releases/tag/v0.48.2","https://github.com/quic-go/quic-go/security/advisories/GHSA-px8v-pp82-rcvr"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:57:36.180738747+00:00"},"epss":{"cve":"CVE-2024-53259","score":0.00604,"percentile":0.48893,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-px8v-pp82-rcvr","url":"https://osv.dev/vulnerability/GHSA-px8v-pp82-rcvr","summary":"quic-go affected by an ICMP Packet Too Large Injection Attack on Linux","modified":"2026-09-10T03:50:21.661779344Z","packages":[{"ecosystem":"Go","name":"github.com/quic-go/quic-go","purl":"pkg:golang/github.com/quic-go/quic-go","ranges":["<0.48.2"],"fixed":["0.48.2"]}]},{"id":"GO-2024-3302","url":"https://osv.dev/vulnerability/GO-2024-3302","summary":"ICMP Packet Too Large Injection Attack on Linux in github.com/quic-go/quic-go","modified":"2026-02-04T04:13:29.531473Z","packages":[{"ecosystem":"Go","name":"github.com/quic-go/quic-go","purl":"pkg:golang/github.com/quic-go/quic-go","ranges":["<0.48.2"],"fixed":["0.48.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}