Unauthenticated router crash via unchecked device-name formatting
Published Oct 17, 2022 · Updated May 13, 2025
Stack-based buffer overflow in Tenda AC10 15.03.06.23 allows remote attackers to crash the router via a crafted device name. The formSetDeviceName handler passes the attacker-controlled devName value to set_device_name, where sprintf appends it without checking the destination stack buffer size. Network access to the HTTP management endpoint is sufficient without authentication; the published proof of concept demonstrates a crash, while the researcher reports control-flow exploitation toward a root shell.
Summary
What happened
Stack-based buffer overflow in Tenda AC10 15.03.06.23 allows remote attackers to crash the router via a crafted device name. The formSetDeviceName handler passes the attacker-controlled devName value to set_device_name, where sprintf appends it without checking the destination stack buffer size. Network access to the HTTP management endpoint is sufficient without authentication; the published proof of concept demonstrates a crash, while the researcher reports control-flow exploitation toward a root shell.
The record
- CVE
- CVE-2022-42165
- Published
- Oct 17, 2022
- Updated
- May 13, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 17, 2022CVE publishedPublication date reported by the CVE source.
- May 13, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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.
Public exploit references
- Tenda AC10 formSetDeviceName crash proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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