Authenticated command injection via fileNameMit
Published Aug 20, 2026 · Updated Aug 20, 2026
Command injection in formcreateFileName in Tenda CH22 1.0.0.1 allows remote authenticated users to execute OS commands via fileNameMit. Public records identify the vulnerable locus as the /goform/formcreateFileName handler but do not disclose the exact command sink; the CNA record states that attacker control of fileNameMit drives OS command injection, indicating unsafe use of that parameter in an operating-system command context. Exposure requires access to the device's web management interface and valid low-privilege credentials, and the available record supports code execution on the camera with no stronger published claim about privilege level or persistence.
Summary
What happened
Command injection in formcreateFileName in Tenda CH22 1.0.0.1 allows remote authenticated users to execute OS commands via fileNameMit. Public records identify the vulnerable locus as the /goform/formcreateFileName handler but do not disclose the exact command sink; the CNA record states that attacker control of fileNameMit drives OS command injection, indicating unsafe use of that parameter in an operating-system command context. Exposure requires access to the device's web management interface and valid low-privilege credentials, and the available record supports code execution on the camera with no stronger published claim about privilege level or persistence.
The record
- CVE
- CVE-2026-77031
- Published
- Aug 20, 2026
- Updated
- Aug 20, 2026
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- CH22 Firmware
- Classifications
- CWE-74, CWE-77, T1059
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 20, 2026CVE publishedPublication date reported by the CVE source.
- Aug 20, 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=1.0.0.1
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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