CVE-2026-3101 Intelbras TIP 635G Ping os command injection

Medium 5.3 Published Updated

Remote attackers can execute arbitrary OS commands via the Ping Handler in Intelbras TIP 635G devices, posing a critical security risk.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-3101?

CVE-2026-3101 is a medium-severity command injection vulnerability in Intelbras TIP 635G, published on 24 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in Intelbras TIP 635G 1.12.3.5. This vulnerability affects unknown code of the component Ping Handler. The manipulation results in os command injection. The attack can be executed remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-3101?

It affects 1 product.

Products include Intelbras Tip 635g Firmware.

How do I fix CVE-2026-3101?

No fix has been published for CVE-2026-3101 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-3101 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3101 exists.

Sources

Also known as GHSA-6pf6-w4c2-rx3f.

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