CVE-2026-34122
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
In TP-Link Tapo C520WS v2.6, a stack-based buffer overflow vulnerability was identified in a configuration handling component due to insufficient input validation. An attacker can supply an excessively long value for a vulnerable configuration parameter, causing a stack overflow. Successful exploitation leads to a Denial-of-Service (DoS) condition, causing service crash or device reboot.
Risk Assessment
An attacker can cause device crash or reboot, leading to monitoring disruption and availability loss.
Recommendation
Update the TP-Link Tapo C520WS firmware to the latest version if available, or restrict access to the configuration interface to trusted networks only.
Original NVD description (English source)
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.