CVE-2021-26411
HighActively exploited (CISA KEV)Known to be used in ransomware campaigns
Description
Internet Explorer Memory Corruption Vulnerability
SeverityHigh
CVSS8.8
Exploit probability—
Product
Microsoft Internet Explorer
PublishedMar 11, 2021
First seenMar 11, 2021
Added to KEVNov 3, 2021
Weakness typeCWE-416Use after free
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Nov 17, 2021Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft internet_explorer | 11, 9 | — |
| microsoft edge | No range specified | — |
Check your version
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