CVE-2026-34124

MEDIUM

Denial of Service via Path Expansion Overflow in HTTP Service in TP-Link Tapo C520WS

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 6.5
EPSS 0.0003
EPSS Percentile 7.5%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (2)
tp-link/tapo_c520ws_firmware < 1.2.4
TP-Link Systems Inc./Tapo C520WS v2.6 < 1.2.4 Build 260326 Rel.24666n
Published Apr 02, 2026
Tracked Since Apr 02, 2026