CVE-2016-5681: D-Link Dir-817l(w) Firmware

Critical severity, CVSS 9.8. EPSS: 11.9% chance of exploitation in the next 30 days.

Stack-based buffer overflow in dws/api/Login on D-Link DIR-850L B1 2.07 before 2.07WWB05, DIR-817 Ax, DIR-818LW Bx before 2.05b03beta03, DIR-822 C1 3.01 before 3.01WWb02, DIR-823 A1 1.00 before 1.00WWb05, DIR-895L A1 1.11 before 1.11WWb04, DIR-890L A1 1.09 before 1.09b14, DIR-885L A1 1.11 before 1.11WWb07, DIR-880L A1 1.07 before 1.07WWb08, DIR-868L B1 2.03 before 2.03WWb01, and DIR-868L C1 3.00 before 3.00WWb01 devices allows remote attackers to execute arbitrary code via a long session cookie.

Affected products

• D-Link Dir-817l(w) Firmware: up to and including jul.2016
• D-Link Dir-818l(w) Firmware: up to and including 2.05
• D-Link Dir-823 Firmware: up to and including 1.00
• D-Link Dir-850l Firmare: up to and including 2.07
• D-Link Dir-880l Firmware: up to and including 1.07
• D-Link Dir-885l Firmware: up to and including 1.11
• D-Link Dir-890l Firmware: up to and including 1.09
• D-Link Dir-895l Firmware: up to and including 1.11
• D-Link Dir-822 Firmware: version 3.01 only
• D-Link Dir-868l Firmware: up to and including 2.03; up to and including 3.00

Published 2016-08-25. Last modified 2026-06-17.