What is CVE-2025-5851?

CVE-2025-5851 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 2025-06-08.

How severe is CVE-2025-5851?

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

Buffer overflow in Tenda Ac15

CVE-2025-5851

A vulnerability was found in Tenda AC15 15.03.05.19_multi. It has been rated as critical. This issue affects the function fromadvsetlanip of the file /goform/AdvSetLanip of the component HTTP POST Request Handler. The manipulation of the a…

Vulnerability class: Buffer Overflow

EPSS: 0.006 (70.5th 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/E:P/RL:X/RC:R.

Affected products

Tenda Ac15 — versions 15.03.05.19_multi

Weakness classification (CWE)

References

VDB-311597 | Tenda AC15 HTTP POST Request AdvSetLanip fromadvsetlanip buffer overflow (vdb-entry, technical-description)
VDB-311597 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #591384 | Tenda AC15 V1.0 V15.03.05.19_multi Buffer Overflow (third-party-advisory)
candle-throne-f75.notion.site/Tenda-AC15-fromadvsetlanip-20adf0aa118580a09182c1… (exploit)
www.tenda.com.cn/ (product)

Frequently asked questions

What is CVE-2025-5851?: CVE-2025-5851 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 2025-06-08.
How severe is CVE-2025-5851?: High severity. CVSS v3 base score is 8.8 out of 10.