CVE-2025-54399: Planet Wgr-500 Firmware

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Multiple stack-based buffer overflow vulnerabilities exist in the formPingCmd functionality of Planet WGR-500 v1.3411b190912. A specially crafted series of HTTP requests can lead to stack-based buffer overflow. An attacker can send a series of HTTP requests to trigger these vulnerabilities.This buffer overflow is related to the `ipaddr` request parameter for composing the `"ping -c <counts> <ipaddr> 2>&1 > %s &"` string.

Affected products

• Planet Wgr-500 Firmware: version 1.3411b190912 only

Published 2025-10-07. Last modified 2026-10-08.