CVE-2026-26201

HIGH

7.5

Description

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: concurrent map read and map write`, causing C2 process crash (availability loss). Version 3.21.2 fixes this issue.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/19/2026

Last Modified2/26/2026

Sourcenvd

Honeypot Sightings0

Affected Products

jm33-m0:emp3r0r

Weaknesses (CWE)

CWE-362CWE-663

References

https://github.com/jm33-m0/emp3r0r/commit/ea4d074f081dac6293f3aec38f01def5f08d5af5(security-advisories@github.com)

https://github.com/jm33-m0/emp3r0r/releases/tag/v3.21.2(security-advisories@github.com)

https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-f5p9-j34q-pwcc(security-advisories@github.com)

IOC Correlations

No correlations recorded

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