Vulnerability in Jm33-m0 Emp3r0r

CVE-2026-26201

emp3r0r is a C2 designed by Linux users for Linux environments. Prior to version 3.21.2, multiple shared maps are accessed without consistent synchronization across goroutines. Under concurrent activity, Go runtime can trigger `fatal error…

Vulnerability class: Race Condition

EPSS: 0.003 (20.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-26201?
CVE-2026-26201 is a high-severity vulnerability in Jm33-m0 Emp3r0r, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2026-02-19.
How severe is CVE-2026-26201?
High severity. CVSS v3 base score is 7.5 out of 10.