EUVD-2026-68583
GHSA-gj22-mg3h-w927
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
setWiFiSignalCfg writes attacker-controlled transmit-power config (I:L integrity impact); DoS is A:H; all other metrics match unauthenticated, network-reachable attack with no complexity.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Incorrect access control in the setWiFiSignalCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to reduce wireless power or cause a Denial of Service (DoS) via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Unauthenticated remote attackers can arbitrarily modify wireless transmit-power settings or deny wireless service on TOTOLINK T6 firmware 4.1.5cu.748_B20211015 by sending a crafted POST to the device's CGI management interface. The setWiFiSignalCfg function is reachable without any authentication gate, a CWE-284 improper access control defect that allows an adversary to degrade or eliminate wireless connectivity for all clients on the affected device. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The router's HTTP management interface (/cgi-bin/cstecgi.cgi) must be network-reachable from the attacker's position. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.5 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) accurately reflects the zero-authentication, network-accessible attack surface, but the I:N metric understates the actual impact: invoking setWiFiSignalCfg with attacker-controlled parameters constitutes a configuration-integrity violation in addition to potential service denial. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at the time of analysis for firmware 4.1.5cu.748_B20211015. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all TOTOLINK T6 devices and identify those running firmware 4.1.5cu.748_B20211015; isolate affected devices from untrusted networks if operationally feasible. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today