High severity · published Apr 16, 2025
CVE-2025-3663
TOTOLINK A3700R Password cstecgi.cgi setWiFiEasyGuestCfg access control
8.2
CVSS
11.3%
EPSS
No
On KEV
Description
A vulnerability, which was classified as critical, has been found in TOTOLINK A3700R 9.1.2u.5822_B20200513. This issue affects the function setWiFiEasyCfg/setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi of the component Password Handler. The manipulation leads to improper access controls. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)11.3% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A3
A3700R · TOTOLINK
9.1.2u.5822_B20200513 · source: vendor
AF
A3700r Firmware · Totolink
9.1.2u.5822_b20200513 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-3663
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-3663
Exploit
https://lavender-bicycle-a5a.notion.site/TOTOLINK-A3700R-setWiFiEasyCfg-1cb53a41781f809f807efe1284f5eb1a?pvs=4
Permissions Required
https://vuldb.com/?ctiid.304841
Third Party Advisory
https://vuldb.com/?id.304841
Third Party Advisory
https://vuldb.com/?submit.551295
Product
https://www.totolink.net/
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