What’s Vulnerable › Vulnerabilities
CVE-2026-4377: Use of Weak Credentials in D-Link DWR-X1820 router
- Severity: medium (CVSS 6.0 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-28 · updated 2026-10-26
- Weakness: CWE-1391
Description
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.
Affected products
- D-Link Corporation DWR-X1820: from 1.00B14CP before 1.00B16CP — fixed in 1.00B16CP
How to fix
Upgrade to a fixed version: D-Link Corporation DWR-X1820 1.00B16CP. Check the vendor advisory for mitigations.
References
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