Root command execution via malicious configuration upload
Published Jan 13, 2026 · Updated Jan 13, 2026
Code injection in Phoenix Contact TC ROUTER and CLOUD CLIENT firmware allows remote attackers to execute commands as root via config-upload. The endpoint accepts a configuration value containing a shell command, and polling sock_server executes it; the published payload rewrites the root password and enables a network service. Exploitation requires a high-privileged user to upload the attacker-supplied configuration, after which the attacker obtains root-level device control.
Summary
What happened
Code injection in Phoenix Contact TC ROUTER and CLOUD CLIENT firmware allows remote attackers to execute commands as root via config-upload. The endpoint accepts a configuration value containing a shell command, and polling sock_server executes it; the published payload rewrites the root password and enables a network service. Exploitation requires a high-privileged user to upload the attacker-supplied configuration, after which the attacker obtains root-level device control.
The record
- CVE
- CVE-2025-41717
- Published
- Jan 13, 2026
- Updated
- Jan 13, 2026
- Vendor
- Phoenix Contact
- Product
- TC ROUTER 3002T-4G VZW
- Classifications
- CWE-94, T1059.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 13, 2026CVE publishedPublication date reported by the CVE source.
- Jan 13, 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.
- Affected versionversion=0.0.0 <3.08.8
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- Authenticated Command Injection in Phoenix Contact TC Router Seriesproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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