Unquoted Service Path Vulnerability in VFS for Git by Microsoft
CVE-2021-47874

8.5HIGH

Key Information:

Vendor

Vfsforgit

Status
Vfs For Git
Vendor
CVE Published:
21 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47874?

The VFS for Git 1.0.21014.1 contains a vulnerability in the GVFS.Service Windows service due to an unquoted binary path. This security flaw allows local attackers to exploit the service during startup or system reboot, potentially executing arbitrary code with elevated privileges. By injecting malicious executables into the service path, an attacker can gain full control over the affected system, demonstrating the importance of proper service path quoting as a critical security measure.

Affected Version(s)

VFS for Git 1.0.21014.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47874 - Proof of Concept

References

https://www.exploit-db.com/exploits/49661
exploit
https://vfsforgit.org/
product
https://www.vulncheck.com/advisories/vfs-for-git-gvfsserv...
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mohammed Alshehri
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