CVE-2026-41501

CriticalRCE

Published: 08 May 2026

Published

08 May 2026

Modified

08 May 2026

KEV Added

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Patch

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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0130 67.0th percentile

Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-41501 is a critical-severity Command Injection (CWE-77) vulnerability in Electerm Project Electerm. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked in the top 33.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-28497

Vulnerability details

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to version 3.3.8, a command injection vulnerability exists in github.com/elcterm/electerm/npm/install.js:130. The runLinux() function appends attacker-controlled remote version strings directly into an exec("rm -rf ...") command without validation. This issue has been patched in…

version 3.3.8.

CWE(s): CWE-77

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1203 Exploitation for Client Execution Execution

Adversaries may exploit software vulnerabilities in client applications to execute code.

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 client install script directly enables arbitrary Unix shell command execution (T1059.004) via exploitation for client execution (T1203).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0