CVE-2026-79766Public exploitNetwork attack vectorHinoki check available

Administrator command execution via unescaped ACME settings

Published Sep 24, 2026 · Updated Sep 24, 2026

OS command injection in Termix 2.4.1 through 2.5.0 allows remote authenticated users with administrator access to execute server commands. The ACME certificate-request handler inserts stored domain and email values into a double-quoted certbot command and passes the string to child_process.execSync, allowing shell metacharacters to escape the intended arguments. Administrator access is required; injected commands run as the backend process and can read or modify Termix data, secrets, stored credentials, and reachable resources.

CVSS severity9.1
Critical
EPSS probability0.39%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

OS command injection in Termix 2.4.1 through 2.5.0 allows remote authenticated users with administrator access to execute server commands. The ACME certificate-request handler inserts stored domain and email values into a double-quoted certbot command and passes the string to child_process.execSync, allowing shell metacharacters to escape the intended arguments. Administrator access is required; injected commands run as the backend process and can read or modify Termix data, secrets, stored credentials, and reachable resources.

The record

CVE
CVE-2026-79766
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
Termix-SSH
Product
Termix
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.4.1, < 2.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Termix-SSH · Termixversion=>= 2.4.1, < 2.5.1

Published CVSS scores

9.1GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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