What’s Vulnerable › Vulnerabilities

CVE-2021-43220: Microsoft Edge for iOS Spoofing Vulnerability

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-24 · updated 2026-08-19
• Weakness: CWE-290

Description

Microsoft Edge for iOS Spoofing Vulnerability

Affected products

• Microsoft Edge Ios: before 96.0.1054.29 — fixed in 96.0.1054.29
• Microsoft Edge: from 1.0.0.0 before 96.0 1954.29 — fixed in 96.0 1954.29

How to fix

Upgrade to a fixed version: Microsoft Edge Ios 96.0.1054.29; Microsoft Edge 96.0 1954.29. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-43220
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43220

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