What is CVE-2025-5854?

CVE-2025-5854 is a high-severity vulnerability in Tenda Ac6, 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-2025-5854?

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

Buffer overflow in Tenda Ac6

CVE-2025-5854

A vulnerability, which was classified as critical, has been found in Tenda AC6 15.03.05.16. Affected by this issue is the function fromadvsetlanip of the file /goform/AdvSetLanip. The manipulation of the argument lanMask leads to buffer ov…

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 Ac6 — versions 15.03.05.16

Weakness classification (CWE)

References

VDB-311600 | Tenda AC6 AdvSetLanip fromadvsetlanip buffer overflow (vdb-entry, technical-description)
VDB-311600 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #591420 | Tenda AC6 V1.0 V15.03.05.16 Buffer Overflow (third-party-advisory)
lavender-bicycle-a5a.notion.site/Tenda-AC6-fromadvsetlanip-20a53a41781f80a29bdf… (exploit)
www.tenda.com.cn/ (product)

Frequently asked questions

What is CVE-2025-5854?: CVE-2025-5854 is a high-severity vulnerability in Tenda Ac6, 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-2025-5854?: High severity. CVSS v3 base score is 8.8 out of 10.