What is the CVSS score of CVE-2025-48064?

CVE-2025-48064 has a CVSS 3.1 base score of 3.3 (Low). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Windows are affected by CVE-2025-48064?

CVE-2025-48064 is a low-severity vulnerability in GitHub Desktop involving information exposure (CVSS 3.3).

How to fix or mitigate CVE-2025-48064?

During next maintenance window: Apply vendor patches when convenient. Verify information disclosure controls are in place.

Windows CVE-2025-48064

LOW

Information Exposure (CWE-200)

2025-05-21 security-advisories@github.com

Microsoft Information Disclosure Apple Windows macOS

3.3

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

3.3 LOW

AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:43 vuln.today

CVE Published

May 21, 2025 - 18:15 nvd

LOW 3.3

DescriptionGitHub Advisory

GitHub Desktop is an open-source, Electron-based GitHub app designed for git development. Prior to version 3.4.20-beta3, an attacker convincing a user to view a file in a commit of their making in the history view can cause information disclosure by means of Git attempting to access a network share. This affects GitHub Desktop users on Windows that view malicious commits in the history view. macOS users are not affected. When viewing a file diff in the history view GitHub Desktop will call git log or git diff with the object id (SHA) of the commit, the name of the file, and the old name of the file if the file has been renamed. As a security precaution Git will attempt to fully resolve the old and new path via realpath, traversing symlinks, to ensure that the resolved paths reside within the repository working directory. This can lead to Git attempting to access a path that resides on a network share (UNC path) and in doing so Windows will attempt to perform NTLM authentication which passes information such as the computer name, the currently signed in (Windows) user name, and an NTLM hash. GitHub Desktop 3.4.20 and later fix this vulnerability. The beta channel includes the fix in 3.4.20-beta3. As a workaround to use until upgrading is possible, only browse commits in the history view that comes from trusted sources.

AnalysisAI

GitHub Desktop is an open-source, Electron-based GitHub app designed for git development. Rated low severity (CVSS 3.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. GitHub Desktop is an open-source, Electron-based GitHub app designed for git development. Prior to version 3.4.20-beta3, an attacker convincing a user to view a file in a commit of their making in the history view can cause information disclosure by means of Git attempting to access a network share. This affects GitHub Desktop users on Windows that view malicious commits in the history view. macOS users are not affected. When viewing a file diff in the history view GitHub Desktop will call git log or git diff with the object id (SHA) of the commit, the name of the file, and the old name of the file if the file has been renamed. As a security precaution Git will attempt to fully resolve the old and new path via realpath, traversing symlinks, to ensure that the resolved paths reside within the repository working directory. This can lead to Git attempting to access a path that resides on a network share (UNC path) and in doing so Windows will attempt to perform NTLM authentication which passes information such as the computer name, the currently signed in (Windows) user name, and an NTLM hash. GitHub Desktop 3.4.20 and later fix this vulnerability. The beta channel includes the fix in 3.4.20-beta3. As a workaround to use until upgrading is possible, only browse commits in the history view that comes from trusted sources. Version information: version 3.4.20.

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.