CVE-2016-6563: D-Link Dir-818l(w) Firmware

Critical severity, CVSS 9.8. EPSS: 79.7% chance of exploitation in the next 30 days.

Processing malformed SOAP messages when performing the HNAP Login action causes a buffer overflow in the stack in some D-Link DIR routers. The vulnerable XML fields within the SOAP body are: Action, Username, LoginPassword, and Captcha. The following products are affected: DIR-823, DIR-822, DIR-818L(W), DIR-895L, DIR-890L, DIR-885L, DIR-880L, DIR-868L, and DIR-850L.

Affected products

• D-Link Dir-818l(w) Firmware: affected versions not specified
• D-Link Dir-822 Firmware: affected versions not specified
• D-Link Dir-823 Firmware: affected versions not specified
• D-Link Dir-850l Firmware: affected versions not specified
• D-Link Dir-868l Firmware: affected versions not specified
• D-Link Dir-880l Firmware: affected versions not specified
• D-Link Dir-885l Firmware: affected versions not specified
• D-Link Dir-890l Firmware: affected versions not specified
• D-Link Dir-895l Firmware: affected versions not specified

Published 2018-07-13. Last modified 2026-06-17.