emp3r0r is a stealth-focused C2 designed by Linux users for Linux environments. Prior to 3.21.1, untrusted agent metadata (Transport, Hostname) is accepted during check-in and later interpolated into tmux shell command strings executed via /bin/sh -c. This enables command injection and remote code execution on the operator host. This vulnerability is fixed in 3.21.1.
Metrics
Affected Vendors & Products
References
History
Fri, 13 Feb 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Jm33-m0
Jm33-m0 emp3r0r |
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| Vendors & Products |
Jm33-m0
Jm33-m0 emp3r0r |
Fri, 13 Feb 2026 18:15:00 +0000
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| Metrics |
ssvc
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Thu, 12 Feb 2026 22:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | emp3r0r is a stealth-focused C2 designed by Linux users for Linux environments. Prior to 3.21.1, untrusted agent metadata (Transport, Hostname) is accepted during check-in and later interpolated into tmux shell command strings executed via /bin/sh -c. This enables command injection and remote code execution on the operator host. This vulnerability is fixed in 3.21.1. | |
| Title | emp3r0r Agent-Controlled Metadata to Operator RCE (tmux Command Injection) | |
| Weaknesses | CWE-77 CWE-78 |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-02-13T17:17:57.660Z
Reserved: 2026-02-10T18:01:31.900Z
Link: CVE-2026-26068
Updated: 2026-02-13T17:17:51.518Z
Status : Awaiting Analysis
Published: 2026-02-12T22:16:06.507
Modified: 2026-02-13T14:23:48.007
Link: CVE-2026-26068
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