CVE-2016-7240 ChakraCore RCE Vulnerability
Remote attackers can execute arbitrary code or cause denial of service via a crafted website exploiting memory corruption in the Chakra engine.
- 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
- Available
What is CVE-2016-7240?
CVE-2016-7240 is a high-severity memory corruption vulnerability in Microsoft Edge, published on 10 Nov 2016. 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
The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7242, and CVE-2016-7243.
Weakness: CWE-119
Which versions are affected by CVE-2016-7240?
2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
Microsoft.ChakraCore NuGet | All versions | 1.2.2 |
Microsoft.ChakraCore NuGet | All versions | 1.2.2 |
Products include Microsoft Edge.
How do I fix CVE-2016-7240?
Upgrade Microsoft.ChakraCore to 1.2.2 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-7240 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-7240 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Microsoft Edge
Sources
Also known as GHSA-hh3v-5chw-wgh7.