PT-2025-29273 · Mvfst · Mvfst

Published 2025-07-11 · Updated 2025-07-12 · CVE-2025-30403

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: mvfst versions prior to v2025.07.07.00

Description: A heap-buffer-overflow vulnerability exists in mvfst. This issue occurs when processing a specially crafted message during a QUIC session.

Recommendations: Update mvfst to version v2025.07.07.00 or later.

Fix

Related Identifiers

CVE-2025-30403

Affected Products

Mvfst

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2025-30403 · Security Note
• https://osv.dev/vulnerability/CVE-2025-30403 · Vendor Advisory
• https://github.com/facebook/mvfst/commit/65b297332191de6e867c4a3139a233fc84c0e7e0 · Note
• https://twitter.com/gothburz/status/1943875459587952980 · Twitter Post
• https://twitter.com/CVEnew/status/1943744950702658014 · Twitter Post
• https://facebook.com/security/advisories/cve-2025-30403 · Note
• https://t.me/cvetracker/27593 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1943835212233789574 · Twitter Post