What is CVE-2026-26068?

CVE-2026-26068 is a critical-severity vulnerability in Jm33-m0 Emp3r0r, classified under Command Injection. CVSS score: 9.9/10. Published 2026-02-12.

How severe is CVE-2026-26068?

Critical severity. CVSS v3 base score is 9.9 out of 10.

RCE in Jm33-m0 Emp3r0r

CVE-2026-26068

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…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.033 (86.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Jm33-m0 Emp3r0r — versions < 3.21.1

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)
security-advisories@github.com (Product, x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-26068?: CVE-2026-26068 is a critical-severity vulnerability in Jm33-m0 Emp3r0r, classified under Command Injection. CVSS score: 9.9/10. Published 2026-02-12.
How severe is CVE-2026-26068?: Critical severity. CVSS v3 base score is 9.9 out of 10.