What is CVE-2025-65804?

CVE-2025-65804 is a medium-severity vulnerability in Tenda Ax3, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2025-12-08.

How severe is CVE-2025-65804?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Tenda Ax3

CVE-2025-65804

Tenda AX3 v16.03.12.11 contains a stack overflow in formSetIptv via the iptvType parameter, which can cause memory corruption and enable remote code execution (RCE).

Vulnerability class: Buffer Overflow

Published 2025-12-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (43.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Tenda Ax3
Tenda Ax3 Firmware — versions 16.03.12.11

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

river-brow-763.notion.site/Tenda-AX3-Buffer-Overflow-in-formSetIptv-2aaa595a7ae… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-65804?: CVE-2025-65804 is a medium-severity vulnerability in Tenda Ax3, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2025-12-08.
How severe is CVE-2025-65804?: Medium severity. CVSS v3 base score is 6.5 out of 10.