CVE-2020-9922

Name: CVE-2020-9922
Creator: NVD / NIST
Published: 2020-12-08T20:15:16.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.49%

Last modified Jun 17, 2026

CVE-2020-9922 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. EPSS estimates a 1.49% chance of exploitation in the next 30 days.

Description

A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. Processing a maliciously crafted email may lead to writing arbitrary files.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.49%

70.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	< 10.15.6

References

https://support.apple.com/en-us/HT211289Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT211289Release Notes, Vendor Advisory

Timeline

Published: Dec 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9922?

How severe is CVE-2020-9922?

CVE-2020-9922 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.49% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9922?

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-2020-9922?

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

Scan your code now

Source: NVD / NIST