Authenticated command execution via unsanitized localPin
Published Sep 19, 2026 · Updated Sep 19, 2026
Command injection in TOTOLINK A3002MU Hh-B20211125.1046 allows remote authenticated users to execute arbitrary commands via localPin. The formWsc handler concatenates the HTTP parameter into a command string without validation or escaping before invoking the system shell. A valid management session is required; exploitation runs attacker-selected commands on the router and can expose an unauthenticated telnet service.
Summary
What happened
Command injection in TOTOLINK A3002MU Hh-B20211125.1046 allows remote authenticated users to execute arbitrary commands via localPin. The formWsc handler concatenates the HTTP parameter into a command string without validation or escaping before invoking the system shell. A valid management session is required; exploitation runs attacker-selected commands on the router and can expose an unauthenticated telnet service.
The record
- CVE
- CVE-2026-93742
- Published
- Sep 19, 2026
- Updated
- Sep 19, 2026
- Vendor
- TOTOLINK
- Product
- A3002MU
- Classifications
- CWE-77, CWE-74, T1059.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 19, 2026CVE publishedPublication date reported by the CVE source.
- Sep 19, 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?
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- Affected versionversion=Hh-B20211125.1046
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- TOTOLINK A3002MU formWsc proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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