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CVE-2026-94450

8.7 high SSVC exploitation: none Published
NVD · CVE.org

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.

Fix

Vendor advisories in the News 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 2

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-20 18:11
  2. First seenCVSS 8.7NVD modified 2026-10-20 19:19

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 3