CVE-2026-4377 — Use of Weak Credentials in D-Link DWR-X1820 router

CVE-2026-4377

Use of Weak Credentials in D-Link DWR-X1820 router PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
D-Link Corporation / DWR-X1820	affected 1.00B14CP before 1.00B16CP

CWE

CWE-1391

References

https://cert.pl/posts/2026/05/CVE-2026-4377
https://www.dlink.com/pl/pl/products/dwr-1820-cp#support

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.