CVE-2021-26411

HIGHCISA KEV

8.8

Description

Internet Explorer Memory Corruption Vulnerability

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published3/11/2021

Last Modified10/30/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorMicrosoft

ProductInternet Explorer

Vulnerability NameMicrosoft Internet Explorer Memory Corruption Vulnerability

KEV Date Added2021-11-03

Remediation Due Date2021-11-17

Ransomware UseKnown

Affected Products

microsoft:edgemicrosoft:internet_explorermicrosoft:windows_10_1507microsoft:windows_10_1607microsoft:windows_10_1803microsoft:windows_10_1809microsoft:windows_10_1909microsoft:windows_10_2004microsoft:windows_10_20h2microsoft:windows_7microsoft:windows_8.1microsoft:windows_rt_8.1microsoft:windows_server_2008microsoft:windows_server_2012microsoft:windows_server_2016microsoft:windows_server_2019

Weaknesses (CWE)

CWE-416CWE-416

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411(secure@microsoft.com)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26411(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.