Buffer overflow in Tenda Fh1201

CVE-2025-7551

A vulnerability was found in Tenda FH1201 1.2.0.14(408). It has been declared as critical. Affected by this vulnerability is the function fromPptpUserAdd of the file /goform/PPTPDClient. The manipulation of the argument modino/username leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Vulnerability class: Buffer Overflow

EPSS: 0.010 (58.6th 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.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-7551?
CVE-2025-7551 is a high-severity vulnerability in Tenda Fh1201, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-07-14.
How severe is CVE-2025-7551?
High severity. CVSS v3 base score is 8.8 out of 10.