CVE-2026-40447 Integer overflow in Escargot

Medium 5.1 Published 13 Apr 2026 Updated 13 Apr 2026

An integer overflow in the Escargot JavaScript engine can lead to undefined behavior, potentially allowing code execution or denial of service.

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-2026-40447?

CVE-2026-40447 is a medium-severity vulnerability in Samsung Open Source Escargot, published on 13 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Integer overflow or wraparound vulnerability in Samsung Open Source Escargot allows undefined behavior.This issue affects Escargot: 97e8115ab1110bc502b4b5e4a0c689a71520d335.

Weakness: CWE-190

Which versions are affected by CVE-2026-40447?

It affects 1 product.

Products include Samsung Escargot.

How do I fix CVE-2026-40447?

No fix has been published for CVE-2026-40447 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-40447 being exploited?

There is no known exploitation of CVE-2026-40447 in the wild and no public exploit code.

Sources

Also known as GHSA-5qqm-hxgj-wv38.