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CVE-2025-48386

Git allows a buffer overflow in 'wincred' credential helper

Medium6.3EPSS 0.43%
Published
Updated
Reserved
Assigned by
GitHub_M

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 scores of CVE-2025-48386, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)3.1Medium6.3CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
NVDNVD · Deferred3.1Medium6.3CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.43% · top 62% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.3.

Weakness

Affected products

  • git · git

    • affected < 2.43.7
    • affected >= 2.44.0-rc0, < 2.44.4
    • affected >= 2.45.0-rc0, < 2.45.4
    • affected >= 2.46.0-rc0, < 2.46.4
    • affected >= 2.47.0-rc0, < 2.47.3
    • affected >= 2.48.0-rc0, < 2.48.2
    • affected >= 2.49.0-rc0, < 2.49.1
    • affected >= 2.50.0-rc0, < 2.50.1

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .