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CVE-2020-27251 Memory corruption in FactoryTalk Linx

Critical 9.8 Published Updated

A heap overflow in FactoryTalk Linx allows remote unauthenticated attackers to execute arbitrary code via malicious port ranges.

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-2020-27251?

CVE-2020-27251 is a critical memory corruption vulnerability in FactoryTalk Linx, published on 26 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious port ranges, which could result in remote code execution.

Weakness: CWE-122

Which versions are affected by CVE-2020-27251?

It affects 1 product.

Products include Rockwellautomation Factorytalk Linx.

How do I fix CVE-2020-27251?

No fix has been published for CVE-2020-27251 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-2020-27251 being exploited?

There is no known exploitation of CVE-2020-27251 in the wild and no public exploit code.

Sources

Also known as GHSA-7hx6-pmgh-3p98.

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