VULNERABILITY INTELLIGENCE

CVE-2025-61684

CVSS score7.5 HIGH
EPSS probability0.40%
CISA KEVNot currently listed
Published2026-01-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Quicly, an IETF QUIC protocol implementation, is susceptible to a denial-of-service attack prior to commit d9d3df6a8530a102b57d840e39b0311ce5c9e14e. A remote attacker can exploit these bugs to trigger an assertion failure that crashes process using Quicly. Commit d9d3df6a8530a102b57d840e39b0311ce5c9e14e fixes the issue.

Weakness classification

  • CWE-20: Improper Input Validation
  • CWE-617: Reachable Assertion

Primary references