CVE-2025-9303

moderate-risk
Published 2025-08-21

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.

Do I need to act?

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0.56% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Totolink

References (6)

Exploit https://github.com/lin-3-start/lin-cve/blob/main/TOTOLINK%20A720R/TOTOLINK-A720R...
Exploit https://github.com/lin-3-start/lin-cve/blob/main/TOTOLINK%20A720R/TOTOLINK-A720R...
Permissions Required https://vuldb.com/?ctiid.320908
Third Party Advisory https://vuldb.com/?id.320908
Third Party Advisory https://vuldb.com/?submit.632410
Third Party Advisory https://www.totolink.net/
37
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal