CVE-2025-30403

A heap-buffer-overflow vulnerability is possible in mvfst via a specially crafted message during a QUIC session

High · published July 11, 2025

CVSS v3.1
8.1
EPSS
0%
Percentile
24.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00330 · 24.9th percentile
Published
2025-07-11T18:26Z
EPSS history
Timeline
  • 11 JUL 18:26Z
    A heap-buffer-overflow vulnerability is possible in mvfst via a specially crafted message during a QUIC session
    cvelistv5