CVE-2025-48386— Git allows a buffer overflow in 'wincred' credential helper
Quick assessment
Affected
git git
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Git是Git开源的一套免费、开源的分布式版本控制系统。 Git存在安全漏洞，该漏洞源于未正确检查缓冲区中剩余的可用空间是否充足，这可能导致潜在的缓冲区溢出问题。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-48386
Vulnerability Information
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Vulnerability Title
Git allows a buffer overflow in 'wincred' credential helper
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Git 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Git是Git开源的一套免费、开源的分布式版本控制系统。 Git存在安全漏洞，该漏洞源于未正确检查缓冲区中剩余的可用空间是否充足，这可能导致潜在的缓冲区溢出问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-48386
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Same Patch Batch · git · 2025-07-08 · 3 CVEs total
| CVE-2025-48384 | 8.1 HIGH | Git allows arbitrary code execution through broken config quoting |
| CVE-2025-48385 | Git alllows arbitrary file writes via bundle-uri parameter injection |
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V. Comments for CVE-2025-48386
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