Authenticated code execution via unchecked deviceList copy
Published Jul 14, 2025 · Updated Jul 14, 2025
Stack-based buffer overflow in Tenda AX1803 1.0.0.1 allows remote authenticated users to execute code via a crafted deviceList value. The formSetMacFilterCfg handler passes deviceList through sub_6483C and sub_6302C to sub_5E250, which copies it with strcpy into a fixed stack buffer without checking its length. Access to the network management endpoint and a low-privileged authenticated session are required; successful exploitation can crash the router or execute code in its firmware context.
Summary
What happened
Stack-based buffer overflow in Tenda AX1803 1.0.0.1 allows remote authenticated users to execute code via a crafted deviceList value. The formSetMacFilterCfg handler passes deviceList through sub_6483C and sub_6302C to sub_5E250, which copies it with strcpy into a fixed stack buffer without checking its length. Access to the network management endpoint and a low-privileged authenticated session are required; successful exploitation can crash the router or execute code in its firmware context.
The record
- CVE
- CVE-2025-7597
- Published
- Jul 14, 2025
- Updated
- Jul 14, 2025
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AX1803
- Classifications
- CWE-121, CWE-119, T1210
- 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?
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- Affected versionversion=1.0.0.1
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
- formSetMacFilterCfg deviceList proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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