CVE-2018-25267 UltraISO 9.7.1.3519 Buffer Overflow via Output FileName

Medium 6.9 Published 22 Apr 2026 Updated 23 Apr 2026

Attackers can cause a denial of service in UltraISO by pasting a maliciously crafted filename into the Output FileName field.

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-2018-25267?

CVE-2018-25267 is a medium-severity memory corruption vulnerability in UltraISO, published on 22 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

UltraISO 9.7.1.3519 contains a local buffer overflow vulnerability in the Output FileName field of the Make CD/DVD Image dialog that allows attackers to overwrite SEH and SE handler records. Attackers can craft a malicious filename string with 304 bytes of data followed by SEH record overwrite values and paste it into the Output FileName field to trigger a denial of service crash.

Weakness: CWE-787

Which versions are affected by CVE-2018-25267?

It affects 1 product.

Products include Ezbsystems Ultraiso.

How do I fix CVE-2018-25267?

No fix has been published for CVE-2018-25267 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-2018-25267 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25267 exists.

Sources

Also known as GHSA-mfmx-cpqw-mpw8.