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

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.

Published: 2025-07-08 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-48386 is rated Low Risk (33.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.32%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-48386

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.01% 0.32% +0.31%
2 2025-07-09 — 0.01% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-48386

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.3 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 4.0 [email protected]

Weakness enumeration for CVE-2025-48386

OS Trackers for CVE-2025-48386

vendor priority summary link
alpine medium CVE-2025-48386: 1 source package rows (git); 86 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 5, open 81. https://security.alpinelinux.org/vuln/CVE-2025-48386
debian unimportant CVE-2025-48386 unimportant priority: Debian including 1 source packages (git), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-48386
gentoo high CVE-2025-48386: 1 GLSA(s) (202507-09), 1 atom(s) (dev-vcs/git); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2025-48386
redhat medium — https://access.redhat.com/security/cve/CVE-2025-48386
suse medium CVE-2025-48386 severity moderate: SUSE including 50 source package names (git, git-2.50.1-1.1, …), 297 product×package rows across 60 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/toolbox, … (60 product lines)): Known Not Affected 240, Fixed 57. https://www.suse.com/security/cve/CVE-2025-48386/
ubuntu medium CVE-2025-48386 medium priority: Ubuntu including 1 source packages (git), 8 status rows across 8 suites (bionic, focal, jammy, noble, oracular, plucky, upstream, xenial): released 8. https://ubuntu.com/security/CVE-2025-48386

Affected software / configurations for CVE-2025-48386

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-48386

cvelogic Threat Intelligence