CVE-2018-8463 Privilege escalation in Microsoft Edge

What is CVE-2018-8463?

CVE-2018-8463 is a high-severity vulnerability in Microsoft Edge, published on 13 Sep 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

An elevation of privilege vulnerability exists in Microsoft Edge that could allow an attacker to escape from the AppContainer sandbox in the browser, aka "Microsoft Edge Elevation of Privilege Vulnerability." This affects Microsoft Edge. This CVE ID is unique from CVE-2018-8469.

Which versions are affected by CVE-2018-8463?

It affects 1 product.

Products include Microsoft Edge.

How do I fix CVE-2018-8463?

No fix has been published for CVE-2018-8463 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-8463 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-8463 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Microsoft Edge

• CVE-2021-26411 Microsoft Internet Explorer Memory Corruption Exploited High 8.8
• CVE-2016-7200 Microsoft Edge Memory Corruption Exploited High 8.8
• CVE-2016-7201 Microsoft Edge Memory Corruption Exploited High 8.8
• CVE-2017-0037 Microsoft Edge and Internet Explorer Type Confusion Exploited High 8.1
• CVE-2016-3351 Microsoft Internet Explorer and Edge Information Disclosure Exploited Medium 6.5

All Microsoft Edge vulnerabilities

Sources

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

Also known as GHSA-39x9-qhh7-qf97.