CVE-2019-7386 Memory corruption in n/a

Medium 6.5 Published 17 Mar 2019 Updated 5 Jun 2026

A memory corruption vulnerability in the KaiOS Gecko browser allows remote attackers to cause a crash or execute arbitrary code via a crafted web page.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2019-7386?

CVE-2019-7386 is a medium-severity memory corruption vulnerability in n/a, published on 17 Mar 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A Denial of Service issue has been discovered in the Gecko component of KaiOS 2.5 10.05 (platform 48.0.a2) on Nokia 8810 4G devices. When a crafted web page is visited with the internal browser, the Gecko process crashes with a segfault. Successful exploitation could lead to the remote code execution on the device.

Which versions are affected by CVE-2019-7386?

It affects 2 products.

Products include Kaiostech Kaios, Nokia 8810 4g Firmware.

How do I fix CVE-2019-7386?

No fix has been published for CVE-2019-7386 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-2019-7386 being exploited?

There is no known exploitation of CVE-2019-7386 in the wild and no public exploit code.

Sources

Also known as GHSA-wj24-m2m7-q8x2.