CVE-2025-9303 HIGH

CVE-2025-9303: TOTOLINK A720R cstecgi.cgi setParentalRules buffer overflow

Vendor Totolink
Product A720R
Weakness CWE-120
Published August 21, 2025
Last update August 21, 2025
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security flaw has been discovered in TOTOLINK A720R 4.1.5cu.630_B20250509. This issue affects the function setParentalRules of the file /cgi-bin/cstecgi.cgi. Performing manipulation of the argument desc results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be exploited.

Key dates

02Disclosure timeline

August 21, 2025 CVE published
August 21, 2025 Record updated