Authenticated code execution via staMac stack overflow
Published May 31, 2026 · Updated May 31, 2026
Stack-based buffer overflow in Tenda W12 3.0.0.7(4763) allows remote authenticated users to corrupt memory via a crafted staMac argument. The cgistaKickOff function in /bin/httpd writes the attacker-controlled argument past a stack buffer without enforcing its bounds. The required gate is authenticated access to the web-management path; exploitation crashes httpd or executes code in its context.
Summary
What happened
Stack-based buffer overflow in Tenda W12 3.0.0.7(4763) allows remote authenticated users to corrupt memory via a crafted staMac argument. The cgistaKickOff function in /bin/httpd writes the attacker-controlled argument past a stack buffer without enforcing its bounds. The required gate is authenticated access to the web-management path; exploitation crashes httpd or executes code in its context.
The record
- CVE
- CVE-2026-10188
- Published
- May 31, 2026
- Updated
- May 31, 2026
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- W12
- Classifications
- CWE-119, CWE-121
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 31, 2026CVE publishedPublication date reported by the CVE source.
- May 31, 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=3.0.0.7(4763)
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 W12 cgistaKickOff overflow proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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