THREATPORT/VULNERABILITY/CVE-2026-26068
CRITICAL SEVERITY

CVE-2026-26068

Emp3r0r vulnerability

CVSS
9.9
EPSS
3.3%
EPSS pct
87th
Exploited
No known
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.
Affected vendor
Jm33 M0
Affected product
Emp3r0r
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness type (CWE)
Published
2026-02-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2026-26068

  • Confirm whether Jm33 M0 Emp3r0r is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2026-26068.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2026-26068

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2026-26068 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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