CVE-2026-5573 Technostrobe HI-LED-WR120-G2 fs unrestricted upload

Medium 6.9 Published 5 Apr 2026 Updated 6 Apr 2026

Remote attackers can upload arbitrary files via the /fs endpoint, potentially leading to code execution on Technostrobe LED controllers.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-5573?

CVE-2026-5573 is a medium-severity vulnerability in Technostrobe HI-LED-WR120-G2, published on 5 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A weakness has been identified in Technostrobe HI-LED-WR120-G2 5.5.0.1R6.03.30. This impacts an unknown function of the file /fs. Executing a manipulation of the argument cwd can lead to unrestricted upload. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-434, CWE-284

Which versions are affected by CVE-2026-5573?

It affects 1 product.

Products include Technostrobe Hi-Led-Wr120-G2 Firmware.

How do I fix CVE-2026-5573?

No fix has been published for CVE-2026-5573 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-5573 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5573 exists.

Sources

Also known as GHSA-mfwc-7h58-p642.