Submit #664922: Shenzhen Tenda Technology Co.,Ltd. AC20 <= V16.03.08.12 (latest) Buffer Overflowinfo

TitleShenzhen Tenda Technology Co.,Ltd. AC20 <= V16.03.08.12 (latest) Buffer Overflow
DescriptionA buffer overflow vulnerability was discovered on the latest version of the Tengda AC20 router, V16.03.08.12, where an attacker sent a well-crafted http post packet to the request path /goform/fast_setting_wifi_set, triggering a denial of service attack or even RCE, specifically via the functionsscanf(Var + 1, "%[^:]:%s", nptr, src); because there is no bounds check on Var, causing a stack overflow
Source⚠️ https://github.com/cymiao1978/cve/blob/main/11.md
User
 cymiao (UID 88596)
Submission09/29/2025 11:18 (7 months ago)
Moderation10/06/2025 21:24 (7 days later)
StatusAccepted
VulDB entry327312 [Tenda AC20 up to 16.03.08.12 fast_setting_wifi_set sscanf timeZone buffer overflow]
Points20

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