CVE-2025-61489: A command injection vulnerability in the shell_exec function of sonirico mcp-shell v0.3.1 allows attackers to

This week

MEDIUM 6.5REMOTEDOWNGRADE

CVE-2025-61489 is a medium-severity flaw (CVSS 6.5) affecting mcp-shell. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-77
Published	2026-01-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sonirico

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-07 17:16 UTCPublished CVE record published
2026-06-17 09:50 UTCUpdated Record last modified

sonirico mcp-shell DOWNGRADE

Affected: 0.3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.3.1

1. Check installed version

apt-cache policy mcp-shell || rpm -q mcp-shell || mcp-shell --version

2. No fixed release: DOWNGRADE to a release before 0.3.1 (Debian / Ubuntu)

apt-cache madison mcp-shell sudo apt install mcp-shell=<VERSION_BEFORE_0.3.1> sudo apt-mark hold mcp-shell

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mcp-shell sudo dnf downgrade mcp-shell-<VERSION_BEFORE_0.3.1> sudo dnf versionlock add mcp-shell

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-61489?

mcp-shell: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-61489 being exploited?

CVE-2025-61489 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-61489 affect?

CVE-2025-61489 affects mcp-shell. Severity is medium (CVSS 6.5). 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.

How urgent is CVE-2025-61489?

Priority 48/100. Public exploit reference; Remotely exploitable, no login, no user action

References

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