What’s Vulnerable › Vulnerabilities

CVE-2024-20670: Outlook for Windows Spoofing Vulnerability

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-09 · updated 2026-06-17
• Weakness: CWE-20

Description

Outlook for Windows Spoofing Vulnerability

Affected products

• Microsoft Outlook: before 1.2023.0322.0100 — fixed in 1.2023.0322.0100
• Microsoft Outlook: from 1.0.0 before 1.2023.0322.0100 — fixed in 1.2023.0322.0100

How to fix

Upgrade to a fixed version: Microsoft Outlook 1.2023.0322.0100; Microsoft Outlook 1.2023.0322.0100. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20670
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20670

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