CVE-2026-101074 Netcore NR289-GE Authentication boa password-check stack-based overflow

Critical 9.3 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the authentication module to potentially execute arbitrary code or escalate privileges.

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-2026-101074?

CVE-2026-101074 is a critical memory corruption vulnerability in Netcore NR289-GE, published on 28 Sep 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 Netcore NR289-GE 1.4.5102. The affected element is the function password-check of the file /bin/boa of the component Authentication. Executing a manipulation of the argument Username can lead to stack-based buffer overflow. The attack may 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-121, CWE-119

Which versions are affected by CVE-2026-101074?

How do I fix CVE-2026-101074?

No fix has been published for CVE-2026-101074 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-101074 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-101074 exists.

Sources

Also known as GHSA-89wp-g8p9-x5r7.

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