PT-2026-26108 · D Link · Wifi Extender Wdr201A

Mstreet97 · Published 2026-03-18 · Updated 2026-03-19 · CVE-2026-30702

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions WiFi Extender WDR201A versions LFMZX28040922V1.02 (HW V2.1)

Description The WiFi Extender WDR201A has a flawed authentication process in its web management interface. The login page does not correctly validate sessions, enabling attackers to circumvent authentication by directly accessing restricted web application endpoints through forced browsing. This allows unauthorized access to the device's management functions.

Recommendations Update to a newer firmware version that addresses the authentication issue.

Exploit

Fix

Improper Authorization

Weakness Enumeration

CWE-285

Related Identifiers

CVE-2026-30702

Affected Products

Wifi Extender Wdr201A

References · 4

• 🔥 https://mstreet97.github.io/security-research/iot/vulnerability-disclosure/cybersecurity/cve/2026/02/18/From-Blackbox-to-Whitebox-Multiple-CVEs-in-a-Consumer-WiFi-Extender.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-30702 · Security Note
• https://twitter.com/CVEnew/status/2034520441008590886 · Twitter Post
• https://made-in-china.com/showroom/yeapook/#:~:text=Established%20in%202015.%2CDistrict%2C%20Shenzhen%2C%20Guangdong%2C%20China · Note