Authenticated memory corruption via unbounded page parameter
Published Apr 12, 2026 · Updated Apr 12, 2026
Stack-based buffer overflow in Tenda F451 1.0.0.7 allows remote authenticated users to corrupt httpd memory through the page parameter. The fromDhcpListClient handler at /goform/DhcpListClient does not bound the page value before placing it in a stack buffer, so oversized input overwrites adjacent stack memory. Low-privileged access to the router's web interface is required; the public record does not establish whether exploitation yields code execution or only a service crash.
Summary
What happened
Stack-based buffer overflow in Tenda F451 1.0.0.7 allows remote authenticated users to corrupt httpd memory through the page parameter. The fromDhcpListClient handler at /goform/DhcpListClient does not bound the page value before placing it in a stack buffer, so oversized input overwrites adjacent stack memory. Low-privileged access to the router's web interface is required; the public record does not establish whether exploitation yields code execution or only a service crash.
The record
- CVE
- CVE-2026-6120
- Published
- Apr 12, 2026
- Updated
- Apr 12, 2026
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- F451
- Classifications
- CWE-119, CWE-121, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 12, 2026CVE publishedPublication date reported by the CVE source.
- Apr 12, 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=1.0.0.7
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
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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