CVE-2019-6989: TP-Link Tl-WR940N Firmware

High severity, CVSS 8.8. EPSS: 11.4% chance of exploitation in the next 30 days.

TP-Link TL-WR940N is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the ipAddrDispose function. By sending specially crafted ICMP echo request packets, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges.

Affected products

• TP-Link Tl-WR940N Firmware: affected versions not specified
• TP-Link Tl-WR941ND Firmware: affected versions not specified

Published 2019-06-06. Last modified 2026-06-17.