Is CVE-2021-26411 actively exploited?

CVE-2021-26411 has no public evidence of in-the-wild exploitation as of 2025-10-30.

What is the CVSS score for CVE-2021-26411?

CVE-2021-26411 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L.

Patch guidance is available from microsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-26411.

3 products: microsoft edge, microsoft internet explorer, microsoft internet explorer.

Internet Explorer Memory Corruption Vulnerability

Primary Vendor: MICROSOFT
Published: 3/11/2021
Last Modified: 10/30/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.