CVE-2025-48386

Git allows a buffer overflow in 'wincred' credential helper

State: Published
Severity: 6.3 Medium
Published: Jul 8, 2025
Updated: Nov 4, 2025
Reserved: May 19, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.3 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N	GitHub_M

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
gitgit	< 2.43.7Affected >= 2.44.0-rc0, < 2.44.4Affected >= 2.45.0-rc0, < 2.45.4Affected >= 2.46.0-rc0, < 2.46.4Affected >= 2.47.0-rc0, < 2.47.3Affected >= 2.48.0-rc0, < 2.48.2Affected >= 2.49.0-rc0, < 2.49.1Affected >= 2.50.0-rc0, < 2.50.1Affected

References

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