CVE-2021-26411
Act now ● On CISA KEV — actively exploited used in ransomware
Actively exploited — on the CISA KEV list.
CVSS base
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L
EPSS — probability of exploitation (30 days)
80.8%
99.6th percentile
CISA KEV
Listed
Added 2021-11-03 · patch by 2021-11-17
Weakness / dates
CWE-416
Published 2021-03-11 · modified 2026-08-19
Description
Internet Explorer Memory Corruption Vulnerability