CVE-2021-26411
HighPublished
Internet Explorer Memory Corruption Vulnerability
- Published
- Mar 11, 2021
- Updated
- Aug 12, 2026
- Assigning CNA
- microsoft
- Evidence observed
- Nov 3, 2021
Primary CVSS
8.8/ 10High
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L80.8%
High · next 30 days
- Percentile
- 99.6%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
Internet Explorer Memory Corruption Vulnerability
Sources
1Proof-of-concept exploit for CVE-2021-26411, an Internet Explorer memory corruption vulnerability enabling remote code execution.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.