Unauthenticated memory corruption via unchecked Wi-Fi setting
Published Nov 21, 2022 · Updated Apr 29, 2025
Classic buffer overflow in Tenda AC18 firmware 15.03.05.19 allows remote attackers to corrupt memory through a crafted Wi-Fi settings request. The form_fast_setting_wifi_set handler copies the attacker-controlled timeZone value into a fixed-size buffer without checking its length. No authentication or user interaction is required; public evidence does not establish whether the corruption produces code execution or only a service crash.
Summary
What happened
Classic buffer overflow in Tenda AC18 firmware 15.03.05.19 allows remote attackers to corrupt memory through a crafted Wi-Fi settings request. The form_fast_setting_wifi_set handler copies the attacker-controlled timeZone value into a fixed-size buffer without checking its length. No authentication or user interaction is required; public evidence does not establish whether the corruption produces code execution or only a service crash.
The record
- CVE
- CVE-2022-44171
- Published
- Nov 21, 2022
- Updated
- Apr 29, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 21, 2022CVE publishedPublication date reported by the CVE source.
- Apr 29, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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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.
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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