CVE-2025-3663 is a critical improper access controls vulnerability affecting the TOTOLINK A3700R router, specifically in firmware version 9.1.2u.5822_B20200513. This flaw resides within the setWiFiEasyCfg/setWiFiEasyGuestCfg functions of the /cgi-bin/cstecgi.cgi component, allowing remote attackers to manipulate password handling. With a CVSS score of 8.2 (HIGH), the vulnerability is easily exploitable over the network with low attack complexity, potentially leading to high impact on availability and low impact on integrity. Although public exploit code exists and the vendor has not responded to disclosure, there is currently no evidence of active exploitation, and it has received minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
9.1.2u.5822_b20200513CPE matchmatch criteria | cpe:2.3:o:totolink:a3700r_firmware:9.1.2u.5822_b20200513:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.