CVE-2020-27949

Name: CVE-2020-27949
Creator: NVD / NIST
Published: 2021-04-02T18:15:16.92+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.98%

Last modified Jun 17, 2026

CVE-2020-27949 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. This issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

This issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. A malicious application may cause unexpected changes in memory belonging to processes traced by DTrace.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.98%

57.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	>= 10.14, < 10.14.6
Apple	Mac Os X	>= 10.15, < 10.15.7
Apple	Mac Os X	10.14.6
Apple	Mac Os X	10.15.7
Apple	Macos	>= 11.0, < 11.1.0

References

https://support.apple.com/en-us/HT212011Vendor Advisory
https://support.apple.com/en-us/HT212011Vendor Advisory

Timeline

Published: Apr 2, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27949?

How severe is CVE-2020-27949?

CVE-2020-27949 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27949?

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-2020-27949?

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

Scan your code now

Source: NVD / NIST