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CVE-2021-34448

nvd nist
Published: Jul 16, 2021Modified: Oct 29, 2025CISA KEV

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD (Secondary)

Description

Scripting Engine Memory Corruption Vulnerability

Affected (15)

Microsoft
14 products
Windows 10 1507
Windows 10 1607
Windows 10 1809
Windows 10 1909
Windows 10 2004
Windows 10 20h2
Windows 10 21h1
Windows 7
Windows 8.1
Windows Rt 8.1
Windows Server 2008
Windows Server 2012
Windows Server 2016
Windows Server 2019
Configuration A
15 vulnerable
Vulnerable SoftwareAffected Versions
Windows 10 1507
Before 10.0.10240.19003
Windows 10 1607
Before 10.0.14393.4530
Windows 10 1809
Before 10.0.17763.2061
Windows 10 1909
Before 10.0.18363.1679
Windows 10 2004
Before 10.0.19041.1110
Windows 10 20h2
Before 10.0.19042.1110
Windows 10 21h1
Before 10.0.19043.1110
Windows 7
All versions
Windows 8.1
All versions
Windows Rt 8.1
All versions
Windows Server 2008
Version r2 sp1
Microsoft
Windows Server 2012
All versions
Windows Server 2012
Version r2
Windows Server 2016
Before 10.0.14393.4530
Windows Server 2019
Before 10.0.17763.2061

Related CWEs

CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.

References (3)

Source: secure@microsoft.com
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

Timeline

No history available yet.