Skip to content
OpenAdvisories
High · 7.1 CVE-2026-34122 EUVD-2026-18434GHSA-hx8v-fm8j-mj2j

Stack-based Buffer Overflow Leading to Denial of Service in TP-Link Tapo C520WS

Published Apr 2, 2026 · Updated Apr 2, 2026 · Assigned by TPLink

Description

A stack-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within a configuration handling component due to insufficient input validation. An attacker can exploit this vulnerability by supplying an excessively long value for a vulnerable configuration parameter, resulting in a stack overflow.

Successful exploitation results in Denial-of-Service (DoS) condition, leading to a service crash or device reboot, impacting availability.

Affected products

VendorProductAffectedFixed
TP-Link Systems Tapo C520WS v2.6 < 1.2.4 Build 260326 Rel.24666n 1.2.4 Build 260326 Rel.24666n

References