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CVE-2021-26411

nvd nist
Published: Mar 11, 2021Modified: Jun 17, 2026CISA 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

Internet Explorer Memory Corruption Vulnerability

Affected (3)

Microsoft
2 products
Edge
Internet Explorer
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Edge
All versions
Configuration B
1 vulnerable · 15 platform
Vulnerable SoftwareAffected Versions
Internet Explorer
Version 11
Running on/withPlatform Versions
Microsoft
Windows 10 1507
All versions
Microsoft
Windows 10 1607
All versions
Microsoft
Windows 10 1803
All versions
Microsoft
Windows 10 1809
All versions
Microsoft
Windows 10 1909
All versions
Microsoft
Windows 10 2004
All versions
Microsoft
Windows 10 20h2
All versions
Microsoft
Windows 7
All versions
Microsoft
Windows 8.1
All versions
Microsoft
Windows Rt 8.1
All versions
Microsoft
Windows Server 2008
Version r2 sp1
Microsoft
Windows Server 2012
All versions
Microsoft
Windows Server 2012
Version r2
Microsoft
Windows Server 2016
All versions
Microsoft
Windows Server 2019
All versions
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Internet Explorer
Version 9
Running on/withPlatform Versions
Microsoft
Windows Server 2008
All versions

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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.