CVE-2025-3663

TOTOLINK A3700R Password cstecgi.cgi setWiFiEasyGuestCfg access control

HIGH
8.2
CVSS Score
Published: April 16, 2025 at 02:31 AM UTC
Updated: June 17, 2026 at 09:20 AM UTC
2 products affected across 1 vendorA3700R FirmwareA3700R

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Severity
HIGH8.2
Exploit prediction
EPSS 11%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-266CWE-284NVD-CWE-noinfo

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