CVE-2025-30403

HIGH EPSS 20.6%
Published Jul 11, 202511mo ago · Modified Jun 17, 20262w ago
8.1 CVSS 3.1
High
Find Similar
Published Jul 11, 2025 11mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.1
Exploitability
2.8
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
20.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

References 2

  • github.com https://github.com/facebook/mvfst/commit/65b297332191de6e867c4a3139a233fc84c0e7e0
  • facebook.com https://www.facebook.com/security/advisories/cve-2025-30403

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.