What is CVE-2025-5861?

CVE-2025-5861 is a high-severity vulnerability in Tenda Ac7, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-06-09.

How severe is CVE-2025-5861?

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

Buffer overflow in Tenda Ac7

CVE-2025-5861

A vulnerability has been found in Tenda AC7 15.03.06.44 and classified as critical. This vulnerability affects the function fromadvsetlanip of the file /goform/AdvSetLanip. The manipulation of the argument lanMask leads to buffer overflow…

Vulnerability class: Buffer Overflow

EPSS: 0.011 (78.8th 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 Ac7 — versions 15.03.06.44

Weakness classification (CWE)

References

VDB-311620 | Tenda AC7 AdvSetLanip fromadvsetlanip buffer overflow (vdb-entry, technical-description)
VDB-311620 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #591960 | Tenda AC7 V1.0 V15.03.06.44 Buffer Overflow (third-party-advisory)
lavender-bicycle-a5a.notion.site/Tenda-AC7-fromadvsetlanip-20a53a41781f80038f4f… (exploit)
www.tenda.com.cn/ (product)

Frequently asked questions

What is CVE-2025-5861?: CVE-2025-5861 is a high-severity vulnerability in Tenda Ac7, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-06-09.
How severe is CVE-2025-5861?: High severity. CVSS v3 base score is 8.8 out of 10.