CVE-2025-48386 MEDIUM

CVE-2025-48386: Git allows a buffer overflow in 'wincred' credential helper

Vendor Git
Product git
Weakness CWE-120
Published July 8, 2025
Last update November 4, 2025

CVSS base score

6.3/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. The wincred credential helper uses a static buffer (target) as a unique key for storing and comparing against internal storage. This credential helper does not properly bounds check the available space remaining in the buffer before appending to it with wcsncat(), leading to potential buffer overflows. This vulnerability is fixed in v2.43.7, v2.44.4, v2.45.4, v2.46.4, v2.47.3, v2.48.2, v2.49.1, and v2.50.1.

Key dates

02Disclosure timeline

July 8, 2025 CVE published
November 4, 2025 Record updated