CVE-2026-94450 (GCVE-0-2026-94450)
Vulnerability from cvelistv5
Published
2026-09-22 20:04
Modified
2026-10-20 18:11
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-1284 - Improper validation of specified quantity in input
  • CWE-617 - Reachable assertion
Summary
Improper validation of the Destination Connection ID length in s2n-quic 1.88.0 and earlier may allow an unauthenticated remote user to cause a denial of service by shutting down a server endpoint via a single crafted UDP datagram. Only server endpoints specifically configured to send Retry packets are affected. To remediate this issue, users should upgrade to version v1.89.0 or later.
References
Impacted products
Vendor Product Version
AWS s2n-quic Version: 0   <
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