What is the CVSS score of CVE-2026-0757?

CVE-2026-0757 has a CVSS 3.0 base score of 8.8 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of AI / ML are affected by CVE-2026-0757?

A critical sandbox escape vulnerability in MCP Manager for Claude Desktop allows attackers to execute arbitrary commands on affected systems through malicious files or web pages.

How to fix or mitigate CVE-2026-0757?

Within 24 hours: Identify and inventory all Claude Desktop installations using MCP Manager across the organization and restrict user access to untrusted websites and file sources. Within 7 days: Implement application whitelisting controls and disable MCP Manager functionality if not business-critical. Within 30 days: Monitor vendor security advisories for patch availability and establish a rapid deployment process; conduct awareness training for users on phishing and malicious file risks.

AI / ML CVE-2026-0757

HIGH

OS Command Injection (CWE-78)

2026-01-23 zdi-disclosures@trendmicro.com

Command Injection AI / ML

8.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 23, 2026 - 04:16 nvd

HIGH 8.8

DescriptionCVE.org

MCP Manager for Claude Desktop execute-command Command Injection Sandbox Escape Vulnerability. This vulnerability allows remote attackers to bypass the sandbox on affected installations of MCP Manager for Claude Desktop. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the processing of MCP config objects. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to escape the sandbox and execute arbitrary code in the context of the current process at medium integrity. Was ZDI-CAN-27810.

AnalysisAI

MCP Manager for Claude Desktop is vulnerable to command injection through improperly validated MCP config objects, enabling remote attackers to escape the sandbox and execute arbitrary code on affected systems. The vulnerability requires user interaction such as visiting a malicious page or opening a malicious file, and currently lacks an available patch. An attacker can leverage this flaw to achieve code execution with medium integrity privileges in the context of the running process.

Technical ContextAI

This vulnerability (CWE-78: OS Command Injection) affects that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the processing of MCP config objects. The issue results from the lack of proper validation of a user-supplied string. MCP Manager for Claude Desktop execute-command Command Injection Sandbox Escape Vulnerability. This vulnerability allows remote attackers to bypass the sandbox on affected installations of MCP Manager for Claude Desktop. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the processing of MCP config objects. The issue results from the lack of proper validation of a user-supplied stri