CVE-2026-81943 PLANET IGS-5225-8P2T4S V1/V2 Debug Mode RCE

High 8.4 Published Updated

Privileged attackers can enable debug mode to execute arbitrary code and gain root access on PLANET industrial switches.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-81943?

CVE-2026-81943 is a high-severity vulnerability in PLANET IGS-5225-8P2T4S V1, published on 18 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions before 1.2412b260707 and 2.2412b260519 contain active debug functionality in the embedded software. An attacker with privileged access to the device can enable this debug mode to execute arbitrary code on the underlying operating system and gain root-level access.

Weakness: CWE-489

Which versions are affected by CVE-2026-81943?

How do I fix CVE-2026-81943?

No fix has been published for CVE-2026-81943 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-81943 being exploited?

There is no known exploitation of CVE-2026-81943 in the wild and no public exploit code.

Sources

Also known as GHSA-g7v4-27pr-jwj2.

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