CVE-2018-8276 ChakraCore Security Bypass
Attackers can bypass Control Flow Guard in the Chakra scripting engine, potentially facilitating further exploitation in Microsoft 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
- Available
What is CVE-2018-8276?
CVE-2018-8276 is a medium-severity vulnerability in Microsoft Edge, published on 11 Jul 2018. 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 security feature bypass vulnerability exists in the Microsoft Chakra scripting engine that allows Control Flow Guard (CFG) to be bypassed, aka "Scripting Engine Security Feature Bypass Vulnerability." This affects Microsoft Edge, ChakraCore.
Which versions are affected by CVE-2018-8276?
2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
Microsoft.ChakraCore NuGet | All versions | 1.10.1 |
Microsoft.ChakraCore NuGet | All versions | 1.10.1 |
Products include Microsoft Edge.
How do I fix CVE-2018-8276?
Upgrade Microsoft.ChakraCore to 1.10.1 or later.
Is CVE-2018-8276 being exploited?
There is no known exploitation of CVE-2018-8276 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Edge
Sources
Also known as GHSA-wg47-6cqc-q52j.