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CVE-2021-26419 - Security Update Guide - Microsoft - Scripting Engine Memory Cor...

 3 years ago
source link: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26419
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Scripting Engine Memory Corruption Vulnerability

CVE-2021-26419
Security Vulnerability

Released: May 11, 2021

Assigning CNA:
Microsoft

MITRE CVE-2021-26419

CVSS:3.0 7.5 / 6.7
Metric
Value
Base score metrics(8)
Temporal score metrics(3)

Please see Common Vulnerability Scoring System for more information on the definition of these metrics.

Exploitability

The following table provides an exploitability assessment for this vulnerability at the time of original publication.
Publicly Disclosed
Exploited
Exploitability Assessment
Exploitation More Likely

The CVSS Score indicates that User Interaction is required to exploit this vulnerability. What type of interaction would the user have to do to allow exploitation?

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine.

The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.

Acknowledgements

Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgements for more information.

Security Updates

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle.
Release date
Product
Platform
Impact
Severity
Article
Download
Details
May 11, 2021
Internet Explorer 11
Windows Server 2012 R2
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows Server 2012
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows RT 8.1
Remote Code Execution
Critical
  • Monthly Rollup
May 11, 2021
Internet Explorer 11
Windows 8.1 for x64-based systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 8.1 for 32-bit systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 7 for x64-based Systems Service Pack 1
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 7 for 32-bit Systems Service Pack 1
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 1607 for x64-based Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 1607 for 32-bit Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 for x64-based Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 for 32-bit Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 20H2 for ARM64-based Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 20H2 for 32-bit Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 20H2 for x64-based Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 2004 for x64-based Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 2004 for ARM64-based Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 2004 for 32-bit Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 1909 for ARM64-based Systems
Remote Code Execution
Critical
May 11, 2021
Internet Explorer 11
Windows 10 Version 1909 for x64-based Systems
Remote Code Execution
Critical
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Disclaimer

The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

Revisions

Version
Revision Date
Description
May 11, 2021

Information published.


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