Summary
Impact: Remote Code Execution. Microsoft rating: Critical. Exploited according to Microsoft — Exploitation Detected. Customer action: Required.
Details
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerability. However, an attacker would have no way to force the user to visit the website. Instead, an attacker would have to convince the user to click a link, typically by way of an enticement in an email or Instant Messenger message, and then convince the user to open the specially crafted file.
Security updates
10.0.17763.2061 — https://support.microsoft.com/help/5004244
10.0.18363.1679 — https://support.microsoft.com/help/5004245
10.0.19043.1110 — https://support.microsoft.com/help/5004237
10.0.10240.19003 — https://support.microsoft.com/help/5004249
10.0.14393.4530 — https://support.microsoft.com/help/5004238
6.1.7601.25661 — https://support.microsoft.com/help/5004289
1.001 — https://support.microsoft.com/help/5005563
6.3.9600.20069 — https://support.microsoft.com/help/5004298
6.2.9200.23409 — https://support.microsoft.com/help/5004294
Vulnerabilities 1
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Medium 6.8
Scripting Engine Memory Corruption Vulnerability
Scripting Engine Memory Corruption Vulnerability
KEV Nov 3, 2021
Revision history
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#1
Information published.
References
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CVE-2021-34448 Scripting Engine Memory Corruption Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34448
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss