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CVE-2021-33741: Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

• Severity: medium (CVSS 5.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-08 · updated 2026-06-17

Description

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Affected products

• Microsoft Edge (Chromium): before 91.0.864.41 — fixed in 91.0.864.41
• Microsoft Edge (Chromium): from 1.0.0 before 91.0.864.41 — fixed in 91.0.864.41

How to fix

Upgrade to a fixed version: Microsoft Edge (Chromium) 91.0.864.41; Microsoft Edge (Chromium) 91.0.864.41. Check the vendor advisory for mitigations.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33741
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33741

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