Remote code execution via unchecked strcpy
Published Jul 14, 2025 · Updated Jul 14, 2025
Stack-based buffer overflow in Tenda FH1205 2.0.0.7(775) allows remote authenticated users to execute code through a crafted Wi-Fi setting. formWifiExtraSet copies the wpapsk_crypto parameter into the tkip_aes stack buffer with strcpy and performs no length check. Access to the router management interface is required; exploitation can crash the device or run code in the router firmware context.
Summary
What happened
Stack-based buffer overflow in Tenda FH1205 2.0.0.7(775) allows remote authenticated users to execute code through a crafted Wi-Fi setting. formWifiExtraSet copies the wpapsk_crypto parameter into the tkip_aes stack buffer with strcpy and performs no length check. Access to the router management interface is required; exploitation can crash the device or run code in the router firmware context.
The record
- CVE
- CVE-2025-7596
- Published
- Jul 14, 2025
- Updated
- Jul 14, 2025
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- FH1205
- Classifications
- CWE-119, CWE-121, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 14, 2025CVE publishedPublication date reported by the CVE source.
- Jul 14, 2025Record 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=2.0.0.7(775)
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.
Weakness, pattern, technique
Public exploit references
- Tenda FH1205 formWifiExtraSet proof of conceptproof of concept · unverified
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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