cve.bz

CVE-2026-26201

7.0 highEPSS 0.3%

High (7.0) in jm33-m0 emp3r0r. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/jm33-m0/emp3r0r/core 0.0.0-20260212232424-ea4d074f081d.

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.

Severity

CVSS 4.0

7.0 high
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.3% chance of exploitation in the next 30 days; higher than 26% of CVEs (scores of 2026-10-31)
CWEs
CWE-362, CWE-663
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-f5p9-j34q-pwccGogithub.com/jm33-m0/emp3r0r/core<0.0.0-20260212232424-ea4d074f081d0.0.0-20260212232424-ea4d074f081d
GO-2026-4504Gogithub.com/jm33-m0/emp3r0r/core<0.0.0-20260212232424-ea4d074f081d0.0.0-20260212232424-ea4d074f081d

References

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