CVE-2025-61489

MediumPublic PoC

Published: 07 January 2026

Published

07 January 2026

Modified

29 January 2026

KEV Added

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Patch

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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS Score 0.0456 89.4th percentile

Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-61489 is a medium-severity Command Injection (CWE-77) vulnerability in Sonirico Mcp-Shell. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 10.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

This vulnerability is AI-related — categorised as AI Agent Protocols and Integrations; in the Supply Chain and Deployment risk domain.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-61489 is a command injection vulnerability (CWE-77) affecting the shell_exec function in sonirico mcp-shell version 0.3.1. Published on 2026-01-07, it allows attackers to execute arbitrary commands by supplying a crafted command string. The vulnerability carries a CVSS v3.1 base score of 6.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N), indicating network accessibility with low attack complexity.

Unauthenticated remote attackers can exploit this vulnerability over the network without requiring user interaction or privileges. Exploitation involves crafting a malicious command string that triggers arbitrary command execution via shell_exec, potentially leading to limited impacts on confidentiality and integrity, such as unauthorized access to certain data or modifications, while availability remains unaffected.

Mitigation details and patches are referenced in the project's GitHub repository at https://github.com/sonirico/mcp-shell and the associated issue tracker at https://github.com/sonirico/mcp-shell/issues/4. Security practitioners should review these sources for updates, workarounds, or remediation steps specific to the affected version.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-1213

Vulnerability details

A command injection vulnerability in the shell_exec function of sonirico mcp-shell v0.3.1 allows attackers to execute arbitrary commands via supplying a crafted command string.

CWE(s): CWE-77

AI Security AnalysisAI

AI Category: AI Agent Protocols and Integrations
Risk Domain: Supply Chain and Deployment
OWASP Top 10 for LLMs 2025: None mapped
Classification Reason: Matched keywords: mcp

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059.004 Unix Shell Execution

Adversaries may abuse Unix shell commands and scripts for execution.

attack.mitre.org →

Why these techniques?

Command injection in publicly accessible shell_exec directly enables remote exploitation of a public-facing app (T1190) and arbitrary Unix shell command execution (T1059.004).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1