CVE-2021-26411

HIGHCVSS 8.8Known Exploited

CISA Known Exploited Vulnerability

https://nvd.nist.gov/vuln/detail/CVE-2021-26411

Remediation deadline: November 17, 2021

Ransomware use: Known

Description

Microsoft Internet Explorer contains an unspecified vulnerability that allows for memory corruption.

Timeline

Published:March 11th, 2021 4:15 PM

Last modified:August 19th, 2026 7:22 PM

Added to KEV:November 3rd, 2021

CVSS Scoring

CVSS v3: 8.8 (HIGH)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L

CVSS v2: 5.1

Affected Software

From NVD CPE configuration data

Vendors

microsoft

Products

edgeinternet_explorer

Weaknesses (CWE)

References & Reports

Advisories, patches, and third-party reports

Source: NIST NVD · Data may lag official sources by up to one minute