Process memory corruption via oversized funcpara1 value
Published Mar 27, 2024 · Updated Apr 10, 2025
Stack-based buffer overflow in Tenda F1203 firmware 2.0.1.6 allows remote authenticated users to corrupt process memory via funcpara1. The formSetCfm handler for /goform/setcfm places an oversized funcpara1 request value into a stack buffer without enforcing its length. Low-privileged access to the management endpoint is required, and triggering the overflow can compromise the router or interrupt its service.
Summary
What happened
Stack-based buffer overflow in Tenda F1203 firmware 2.0.1.6 allows remote authenticated users to corrupt process memory via funcpara1. The formSetCfm handler for /goform/setcfm places an oversized funcpara1 request value into a stack buffer without enforcing its length. Low-privileged access to the management endpoint is required, and triggering the overflow can compromise the router or interrupt its service.
The record
- CVE
- CVE-2024-2978
- Published
- Mar 27, 2024
- Updated
- Apr 10, 2025
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- F1203 Firmware
- Classifications
- CWE-787, CWE-121, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 27, 2024CVE publishedPublication date reported by the CVE source.
- Apr 10, 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=2.0.1.6
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
- formSetCfm funcpara1 proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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