CVE-2017-8741 Memory corruption in Internet Explorer, Microsoft Edge

High 7.5 Published Updated

Attackers can execute arbitrary code via memory corruption in the JavaScript engine of Internet Explorer and Edge.

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-2017-8741?

CVE-2017-8741 is a high-severity memory corruption vulnerability in Microsoft Edge, published on 13 Sep 2017. 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

Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, and Internet Explorer and Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow an attacker to execute arbitrary code in the context of the current user, due to the way that the Microsoft browser JavaScript engines render content when handling objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8649, CVE-2017-8660, CVE-2017-8729, CVE-2017-8738, CVE-2017-8740, CVE-2017-8741, CVE-2017-8748, CVE-2017-8752, CVE-2017-8753, CVE-2017-8755, CVE-2017-8756, and CVE-2017-11764.

Weakness: CWE-119

Which versions are affected by CVE-2017-8741?

It affects 2 products.

Products include Microsoft Edge, Microsoft Internet Explorer.

How do I fix CVE-2017-8741?

No fix has been published for CVE-2017-8741 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-2017-8741 being exploited?

There is no known exploitation of CVE-2017-8741 in the wild and no public exploit code.

All Microsoft Edge vulnerabilities

Sources

Also known as GHSA-cgcc-2gx3-65mj.

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