Authenticated command execution via unfiltered sysCmd parameter
Published Jan 30, 2026 · Updated Jan 30, 2026
Command injection in Tenda HG10 firmware US_HG7_HG9_HG10re_300001138_en_xpon allows remote authenticated users to execute system commands. The Boa formSysCmd handler reads sysCmd with boaGetVar, interpolates it unfiltered into a shell command, and passes the result to system(). High-privilege access to the management interface is required, after which injected shell syntax runs with the web service's operating-system privileges.
Summary
What happened
Command injection in Tenda HG10 firmware US_HG7_HG9_HG10re_300001138_en_xpon allows remote authenticated users to execute system commands. The Boa formSysCmd handler reads sysCmd with boaGetVar, interpolates it unfiltered into a shell command, and passes the result to system(). High-privilege access to the management interface is required, after which injected shell syntax runs with the web service's operating-system privileges.
The record
- CVE
- CVE-2026-1690
- Published
- Jan 30, 2026
- Updated
- Jan 30, 2026
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- HG10
- Classifications
- CWE-77, CWE-74, T1059.004
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jan 30, 2026CVE publishedPublication date reported by the CVE source.
- Jan 30, 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=US_HG7_HG9_HG10re_300001138_en_xpon
What conditions does exploitation require?
What is affected?
Published CVSS scores
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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
- Tenda HG10 formSysCmd sysCmd proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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