CVE-2020-10639 Memory corruption in Eaton HMiSoft VU3 (HMIVU3 runtime not impacted)

High 7.8 Published Updated

A buffer overflow in Eaton HMiSoft VU3 allows attackers to execute arbitrary code or cause denial of service via a crafted input file.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-10639?

CVE-2020-10639 is a high-severity memory corruption vulnerability in Eaton HMiSoft VU3 (HMIVU3 runtime not impacted), published on 15 Apr 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Eaton HMiSoft VU3 (HMIVU3 runtime not impacted), Version 3.00.23 and prior, however, the HMIVU runtimes are not impacted by these issues. A specially crafted input file could cause a buffer overflow when loaded by the affected product.

Weakness: CWE-120, CWE-121

Which versions are affected by CVE-2020-10639?

It affects 1 product.

Products include Eaton Hmisoft Vu3 Firmware.

How do I fix CVE-2020-10639?

No fix has been published for CVE-2020-10639 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-2020-10639 being exploited?

There is no known exploitation of CVE-2020-10639 in the wild and no public exploit code.

Sources

Also known as GHSA-2x2p-r3j5-7pgp.

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