CVE-2022-43622: D-Link Dir-1935 Firmware

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 1.03 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of Login requests to the web management portal. When parsing the HNAP_AUTH header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16139.

Affected products

• D-Link Dir-1935 Firmware: up to and including 1.02; version 1.03 only

Published 2023-03-29. Last modified 2026-06-17.