CVE-2026-34124
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk22th percentile - higher than 22% of all known CVEs
Summary
TP-Link Tapo C520WS v2.6 has a DoS vulnerability in HTTP request path parsing. Failure to account for path expansion during normalization leads to buffer overflow and memory corruption, potentially causing device reboot.
Risk Assessment
An attacker on the adjacent network can disrupt camera operation, disabling monitoring and potentially causing loss of recordings.
Recommendation
Contact the vendor for a patch or consider restricting device access to trusted networks.
Other vulnerabilities in TP-Link Tapo C520WS
See all- CVE-2026-34122Medium
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.
- CVE-2026-34121High
The TP-Link Tapo C520WS v2.6 camera has an authentication bypass vulnerability in the HTTP handling of the DS configuration service. Inconsistent parsing and authorization logic in JSON requests allows an unauthenticated attacker to append an authentication-exempt action to a request containing privileged DS actions, bypassing access controls.
- CVE-2026-34120Medium
TP-Link Tapo C520WS v2.6 has a heap-based buffer overflow in asynchronous parsing of local video streams. An attacker on the same network can send crafted payloads causing memory corruption and denial of service (DoS).
- CVE-2026-34119Medium
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).
Original NVD description (English source)
A denial-of-service vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP request path parsing logic. The implementation enforces length restrictions on the raw request path but does not account for path expansion performed during normalization. An attacker on the adjacent network may send a crafted HTTP request to cause buffer overflow and memory corruption, leading to system interruption or device reboot.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS