CVE-2023-5778 Missing Length Check

Critical 9.2 Published Updated

Improper length parameter handling in ABB Freelance Controllers allows attackers to cause denial of service or execute arbitrary code.

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-2023-5778?

CVE-2023-5778 is a critical vulnerability in ABB Freelance Controller AC700, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper handling of length parameter inconsistency vulnerability in ABB Freelance Controller DCP, ABB Freelance Controller AC700, ABB Freelance Controller AC800, and ABB Freelance Controller AC900.

This issue affects Freelance Controller DCP: through 2013, 2013 SP1, 2016, 2016 SP1, 2019, and 2019 SP1; Freelance Controller AC700: through 2013, 2013 SP1, 2016, 2016 SP1, 2019, and 2019 SP1; Freelance Controller AC800: through 2013, 2013 SP1, 2016, 2016 SP1, 2019, and 2019 SP1; Freelance Controller AC900: through 2013, 2013 SP1, 2016, 2016 SP1, 2019, and 2019 SP1.

Weakness: CWE-130

Which versions are affected by CVE-2023-5778?

How do I fix CVE-2023-5778?

No fix has been published for CVE-2023-5778 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-5778 being exploited?

There is no known exploitation of CVE-2023-5778 in the wild and no public exploit code.

Sources

Also known as GHSA-j29v-23r4-r42c.

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