CVE-2025-9303

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.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - cna@vuldb.com

Published

2025-08-21

Last modified

2025-08-21

Weaknesses

CWE-119, CWE-120

Affected products

• A720r (Totolink)
• A720r Firmware (Totolink)

References

• https://github.com/lin-3-start/lin-cve/blob/main/TOTOLINK%20A720R/TOTOLINK-A720R.md
• https://github.com/lin-3-start/lin-cve/blob/main/TOTOLINK%20A720R/TOTOLINK-A720R.md#poc
• https://vuldb.com/?ctiid.320908
• https://vuldb.com/?id.320908
• https://vuldb.com/?submit.632410
• https://www.totolink.net/