CVE-2026-34119
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk14th percentile - higher than 14% of all known CVEs
Summary
TP-Link Tapo C520WS v2.6 has a heap-based buffer overflow in the HTTP parsing loop when appending segmented request bodies. An attacker on the same network can send crafted payloads causing memory corruption and denial of service (DoS).
Risk Assessment
The attack can crash the device or make it unresponsive, disabling video monitoring and potentially compromising physical security.
Recommendation
Contact the vendor for a patch. If unavailable, consider isolating the device from the network or using firewalls.
Original NVD description (English source)
A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP parsing loop when appending segmented request bodies without continuous write‑boundary verification, due to insufficient boundary validation when handling externally supplied HTTP input. An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries. Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.