CVE-2026-44435: fallo de gravedad alta en h2o quicly
Quicly: Remote Denial of Service via assertion failure when CRYPTO stream handshake data exceeds 32KB
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.5%
Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a Denial of Service. This issue has been fixed by commit 937d0e9.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Productos afectados
h2o · quiclyCVEs relacionadas — h2o quicly
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-45396HIGHQuicly assertion failuresEPSS 0.6%CVE-2026-44436HIGHQuicly is vulnerable to connection state corruptionEPSS 0.5%CVE-2026-44433MEDIUMQuicly is vulnerable to memory exhaustionEPSS 0.5%CVE-2025-61684HIGHQuicly has assertion failuresEPSS 0.4%CVE-2026-44434MEDIUMQuicly is vulnerable to stateless reset injectionEPSS 0.2%