CVE-2025-30403

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CVSS 3.1

8.1 high

EPSS

<1%p21

Published

Jul 11, 2025 (Jul 11, 2025)

Modified

Jun 17, 2026

Description

A heap-buffer-overflow vulnerability is possible in mvfst via a specially crafted message during a QUIC session. This issue affects mvfst versions prior to v2025.07.07.00.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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