CVE-2026-29520

CWE-79Published: March 16, 2026· Updated: Mar 17, 2026

6.1

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.9th

Official Description

Hereta ETH-IMC408M firmware version 1.0.15 and prior contain a reflected cross-site scripting vulnerability in the Network Diagnosis ping function that allows attackers to execute arbitrary JavaScript. Attackers can craft malicious links with injected script payloads in the ping_ipaddr parameter to compromise authenticated administrator sessions when the links are visited.

NVD Source

Technical Analysis

CVE-2026-29520 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.