CVE-2026-124577 Intelbras SG 2404 PoE L2+ Web Management EXCU_SHELL improper authentication

Critical 9.3 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-124577?

CVE-2026-124577 is a critical vulnerability in Intelbras SG 2404 PoE L2+, published on 9 Nov 2026.

Official description

A weakness has been identified in Intelbras SG 2404 PoE L2+ 1.00.70/1.00.72. The affected element is an unknown function of the file /EXCU_SHELL of the component Web Management Interface. Executing a manipulation can lead to improper authentication. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.00.74 is sufficient to fix this issue. Upgrading the affected component is advised.

Weakness: CWE-287

Which versions are affected by CVE-2026-124577?

How do I fix CVE-2026-124577?

No fix has been published for CVE-2026-124577 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-124577 being exploited?

There is no known exploitation of CVE-2026-124577 in the wild and no public exploit code.

Sources

Also known as GHSA-3p42-pj8h-255g.

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