CVE-2020-0878

Known Exploited
Microsoft Browser Memory Corruption Vulnerability

Description

<p>A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>An attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft browsers, and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically via an enticement in email or instant message, or by getting them to open an email attachment.</p> <p>The security update addresses the vulnerability by modifying how Microsoft browsers handle objects in memory.</p>

Category

4.2
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 25.91% Top 5%
KEV Since 
Vendor Advisory microsoft.com
Affected: Microsoft ChakraCore
Affected: Microsoft Microsoft Edge (EdgeHTML-based)
Affected: Microsoft Internet Explorer 9
Affected: Microsoft Internet Explorer 11
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2020-0878?
CVE-2020-0878 has been scored as a medium severity vulnerability.
How to fix CVE-2020-0878?
To fix CVE-2020-0878, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-0878 being actively exploited in the wild?
It is confirmed that CVE-2020-0878 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~26% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-0878?
CVE-2020-0878 affects Microsoft ChakraCore, Microsoft Microsoft Edge (EdgeHTML-based), Microsoft Internet Explorer 9, Microsoft Internet Explorer 11.
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