CVE-2019-1349Network attack vector

Code execution via colliding submodule directories

Published Jan 24, 2020 · Updated Aug 4, 2024

Remote code execution in Git for Microsoft Visual Studio 2017 and 2019 allows remote attackers to run code through a malicious recursive clone. During recursive submodule cloning, Git can reuse a nonempty Git directory and let colliding NTFS short names overwrite a submodule's .git file. Exploitation requires user interaction to clone an untrusted repository onto storage with NTFS short names, and code runs in the user's context.

CVSS severity8.8
High
EPSS probability34.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Remote code execution in Git for Microsoft Visual Studio 2017 and 2019 allows remote attackers to run code through a malicious recursive clone. During recursive submodule cloning, Git can reuse a nonempty Git directory and let colliding NTFS short names overwrite a submodule's .git file. Exploitation requires user interaction to clone an untrusted repository onto storage with NTFS short names, and code runs in the user's context.

The record

CVE
CVE-2019-1349
Published
Jan 24, 2020
Updated
Aug 4, 2024
Vendor
Microsoft
Product
Microsoft Visual Studio 2019
Classifications
CWE-20, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=16.0
  2. Affected versionversion=unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Visual Studio 2019version=16.0; version=unspecified
Microsoft · Microsoft Visual Studio 2017version=15.0; version=unspecified

Published CVSS scores

9.3NIST NVDAV:N/AC:M/Au:N/C:C/I:C/A:C
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo