CVE-2024-20670

Name: CVE-2024-20670
Creator: NVD / NIST
Published: 2024-04-09T17:15:32.907+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 2.31%

Last modified Jun 17, 2026

CVE-2024-20670 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Outlook for Windows Spoofing Vulnerability. EPSS estimates a 2.31% chance of exploitation in the next 30 days.

Description

Outlook for Windows Spoofing Vulnerability

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

2.31%

81.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Microsoft	Outlook	< 1.2023.0322.0100

References

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

Timeline

Published: Apr 9, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-20670?

Outlook for Windows Spoofing Vulnerability

How severe is CVE-2024-20670?

CVE-2024-20670 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 2.31% probability of exploitation in the next 30 days.

How do I fix CVE-2024-20670?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-20670?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST