What is CVE-2025-3786?

CVE-2025-3786 is a high-severity vulnerability in Tenda Ac15, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-04-18.

How severe is CVE-2025-3786?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Tenda Ac15

CVE-2025-3786

A vulnerability was found in Tenda AC15 up to 15.03.05.19 and classified as critical. This issue affects the function fromSetWirelessRepeat of the file /goform/WifiExtraSet. The manipulation of the argument mac leads to buffer overflow. Th…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (48.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tenda Ac15 — versions 15.03.05.0, 15.03.05.1, 15.03.05.2

Weakness classification (CWE)

References

VDB-305609 | Tenda AC15 WifiExtraSet fromSetWirelessRepeat buffer overflow (vdb-entry, technical-description)
VDB-305609 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #553703 | Shenzhen Tenda Technology Co.,Ltd. AC15 <=V15.03.05.19 Buffer Overflow (third-party-advisory)
github.com/CH13hh/cve/tree/AC15WifiExtraSet (exploit)
www.tenda.com.cn/ (broken-link, product)

Frequently asked questions

What is CVE-2025-3786?: CVE-2025-3786 is a high-severity vulnerability in Tenda Ac15, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-04-18.
How severe is CVE-2025-3786?: High severity. CVSS v3 base score is 8.8 out of 10.