CVE-2025-48386

Git allows a buffer overflow in 'wincred' credential helper

MEDIUM

6.3

CVSS Score

Published: July 8, 2025 at 06:23 PM UTC

Updated: June 17, 2026 at 09:29 AM UTC

1 product affected across 1 vendorGit

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Severity

MEDIUM6.3

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Git · Gitrubygems

60%

v < 2.43.7v < 2.44.4v < 2.45.4v < 2.46.4v < 2.47.3v < 2.48.2v < 2.49.1v < 2.50.1

Affected range stops below 2.43.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.44.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.45.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.46.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.47.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.48.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.49.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.50.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_CONFIRM

Source: [email protected]

https://github.com/git/git/security/advisories/GHSA-4v56-3xvj-xvfr

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.openwall.com/lists/oss-security/2025/07/08/4

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMGitHub_M

Attack Vector: LOCAL
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-120

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