CVE-2026-4377

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (2)

Core 2
Core References
Third Party Advisory third-party-advisory
https://cert.pl/posts/2026/05/CVE-2026-4377

Scores

CVSS v4 6.0
EPSS 0.0014
EPSS Percentile 3.7%
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1391
Status published
Products (1)
D-Link Corporation/DWR-X1820 1.00B14CP - 1.00B16CP
Published May 28, 2026
Tracked Since May 28, 2026