| 标题 | Tenda AC20 V1.0re_V16.03.08.05 Buffer Overflow |
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| 描述 | A stack-based buffer overflow vulnerability exists in Tenda AC20 router via the `/goform/SetFirewallCfg` endpoint. The vulnerability occurs when processing the `firewallEn` parameter: after verifying input length > 3 via `strlen()`, the program uses unsafe `strcpy()` to copy user-controlled data into a fixed-size stack buffer . Due to missing upper-bound length validation, attackers can craft oversized payloads to overflow the buffer. Successful exploitation could allow denial of service, arbitrary code execution.
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| 来源 | ⚠️ https://github.com/LaiwanHundun/CVE/blob/main/cve1 |
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| 用户 | hundun (UID 88636) |
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| 提交 | 2025-08-02 11時51分 (1 年前) |
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| 管理 | 2025-08-09 09時58分 (7 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 319339 [Tenda AC20 16.03.08.05 /goform/SetFirewallCfg strcpy firewallEn 内存损坏] |
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| 积分 | 20 |
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