Buffer overflow in Tenda Fh1203

CVE-2025-69700

Tenda FH1203 V2.0.1.6 contains a stack-based buffer overflow vulnerability in the modify_add_client_prio function, which is reachable via the formSetClientPrio CGI handler.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.036 (89.0th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-69700: held from 0.035 to 0.036.

EPSS over last 30 days · oldest: 0.035 · newest: 0.036 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-69700?
CVE-2025-69700 is a high-severity vulnerability in Tenda Fh1203, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-02-23.
How severe is CVE-2025-69700?
High severity. CVSS v3 base score is 7.5 out of 10.