CVE-2026-4377
MediumCVSS 6.0Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
The Dlink DWR-X1820 router uses a weak default password generated from its IMEI number and does not require users to change it. An attacker who knows how passwords are generated can easily crack the default password if they have the device IMEI number. This issue was fixed in version 1.00B16CP.
Risk Assessment
An attacker who knows the router's IMEI number could gain unauthorized access to its administrative interface and take control of the device and network.
Recommendation
Update the Dlink DWR-X1820 router firmware to version 1.00B16CP or later and immediately change the default administrator password.
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Original NVD description (English source)
Dlink DWR-X1820 router uses weak default password generated from its IMEI number and does not require users to change it. An attacker who knows how passwords are generated can easily crack the default password if they have the device IMEI number. This issue was fixed in version 1.00B16CP.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

