CVE-2025-55848: D-Link DIR-823X Firmware

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in DIR-823 firmware 20250416. There is an RCE vulnerability in the set_cassword settings interface, as the http_casswd parameter is not filtered by '&'to allow injection of reverse connection commands.

Affected products

• D-Link DIR-823X Firmware: version 250416 only

Published 2025-09-26. Last modified 2026-06-17.