CVE-2019-25589 ZOC Terminal 7.23.4 Buffer Overflow Denial of Service

Medium 6.9 Published Updated

Local attackers can crash ZOC Terminal by pasting a long string into the Shell configuration field, causing a buffer overflow.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-25589?

CVE-2019-25589 is a medium-severity memory corruption vulnerability in Emtec ZOC Terminal, published on 22 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ZOC Terminal 7.23.4 contains a buffer overflow vulnerability in the Shell field of Program Settings that allows local attackers to crash the application by supplying an excessively long string. Attackers can paste a crafted payload into the Shell configuration field and trigger a crash when accessing the Command Shell feature.

Weakness: CWE-787

Which versions are affected by CVE-2019-25589?

It affects 1 product.

Products include Emtec Zoc.

How do I fix CVE-2019-25589?

No fix has been published for CVE-2019-25589 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-2019-25589 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25589 exists.

Sources

Also known as GHSA-jggw-wgm7-pq5p.

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