CVE-2018-8473 Memory corruption in ChakraCore

What is CVE-2018-8473?

CVE-2018-8473 is a high-severity memory corruption vulnerability in Microsoft Chakracore, published on 10 Oct 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 remote code execution vulnerability exists when Microsoft Edge improperly accesses objects in memory, aka "Microsoft Edge Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8509.

Weakness: CWE-787

Which versions are affected by CVE-2018-8473?

It affects 2 products.

Products include Microsoft Chakracore, Microsoft Edge.

How do I fix CVE-2018-8473?

No fix has been published for CVE-2018-8473 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-2018-8473 being exploited?

There is no known exploitation of CVE-2018-8473 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Chakracore

• CVE-2018-8298 ChakraCore Scripting Engine Type Confusion Exploited High 7.5
• CVE-2020-0878 Microsoft Edge and Internet Explorer Memory Corruption Exploited Medium 4.2
• CVE-2018-8500 ChakraCore RCE Vulnerability Critical 9.8
• CVE-2017-11767 ChakraCore vulnerable to privilege escalation Critical 9.8
• CVE-2017-8658 ChakraCore RCE Vulnerability Critical 9.8

All Microsoft Chakracore vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-mw9g-9q6h-rwwq.