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

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.

Timeline

  1. ID reserved

    By GitHub_M

  2. · 50 days later

    Published

  3. · 4 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

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 (13 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.

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

References2

Sources

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

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Record last updated .