CVE-2018-6232 Memory corruption in Trend Micro Maximum Security

High 7.8 Published 25 May 2018 Updated 5 Aug 2024

A local attacker can escalate privileges via a buffer overflow in the tmnciesc.sys driver of Trend Micro Maximum Security.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-6232?

CVE-2018-6232 is a high-severity memory corruption vulnerability in Trend Micro Maximum Security, published on 25 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A buffer overflow privilege escalation vulnerability in Trend Micro Maximum Security (Consumer) 2018 could allow a local attacker to escalate privileges on vulnerable installations due to a flaw within processing of IOCTL 0x22205C by the tmnciesc.sys driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Weakness: CWE-120

Which versions are affected by CVE-2018-6232?

It affects 4 products.

Products include Trendmicro Antivirus\+, Trendmicro Internet Security, Trendmicro Maximum Security, Trendmicro Premium Security.

How do I fix CVE-2018-6232?

No fix has been published for CVE-2018-6232 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-2018-6232 being exploited?

There is no known exploitation of CVE-2018-6232 in the wild and no public exploit code.

Sources

Also known as GHSA-mfxc-mcrv-v23g.