Is CVE-2026-34122 actively exploited?

No active exploitation of CVE-2026-34122 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34122 be exploited remotely?

Partially. CVE-2026-34122 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-34122?

CVE-2026-34122 has a CVSS score of 6.5 (MEDIUM).

HOME VULNERABILITIESCVE-2026-34122

MEDIUM

CVE-2026-34122

CWE-121Published: April 2, 2026· Updated: Apr 6, 2026

6.5

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:3.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-34122 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.