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CVE-2021-26411

Known Exploited (CISA KEV)HIGH

8.8

CVSS Severity Score

EPSS Score89.9980%

EPSS Percentile98.91th

PublishedMar 11, 2021

Last ModifiedOct 30, 2025

Vulnerability Description

Internet Explorer Memory Corruption Vulnerability

Affected Platforms (CPE)

📦

Microsoft

Edge

All versions

📦

Microsoft

Internet Explorer

= 11

📦

Microsoft

Internet Explorer

= 9

References & Advisories

🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411

🔗 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411

🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26411

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