CVE-2019-1367 Microsoft Internet Explorer Scripting Engine Memory Corruption

Exploited in the wild High 7.5 Published Updated

Remote attackers can execute arbitrary code via a memory corruption flaw in the Internet Explorer scripting engine.

Exploited in the wild
Since 3 Nov 2021
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-2019-1367?

CVE-2019-1367 is a high-severity memory corruption vulnerability in Microsoft Internet Explorer, published on 23 Sep 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 remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1221.

Weakness: CWE-787

Which versions are affected by CVE-2019-1367?

It affects 1 product.

Products include Microsoft Internet Explorer.

How do I fix CVE-2019-1367?

No fix has been published for CVE-2019-1367 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-1367 being exploited?

Yes. Attackers have exploited CVE-2019-1367 in the wild since at least 3 Nov 2021, including in ransomware campaigns.

Public exploit code: 1 proofs of concept on GitHub.

All Microsoft Internet Explorer vulnerabilities

Sources

Also known as GHSA-5786-v8v7-87fq.

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