CVE-2021-26419 Scripting Engine Memory Corruption Vulnerability

High 7.5 Published Updated

A memory corruption flaw in the Internet Explorer scripting engine allows attackers to execute arbitrary code via crafted web content.

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-2021-26419?

CVE-2021-26419 is a high-severity memory corruption vulnerability in Microsoft Internet Explorer, published on 11 May 2021. 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

Scripting Engine Memory Corruption Vulnerability

Weakness: CWE-787

Which versions are affected by CVE-2021-26419?

It affects 1 product.

Products include Microsoft Internet Explorer.

How do I fix CVE-2021-26419?

No fix has been published for CVE-2021-26419 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-2021-26419 being exploited?

There is no known exploitation of CVE-2021-26419 in the wild and no public exploit code.

All Microsoft Internet Explorer vulnerabilities

Sources

Also known as GHSA-4qh5-35r2-7932.

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