CVE-2020-9979

Name: CVE-2020-9979
Creator: NVD / NIST
Published: 2020-10-27T21:15:15.977+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2020-9979 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A trust issue was addressed by removing a legacy API. This issue is fixed in iOS 14.0 and iPadOS 14.0, tvOS 14.0. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

A trust issue was addressed by removing a legacy API. This issue is fixed in iOS 14.0 and iPadOS 14.0, tvOS 14.0. An attacker may be able to misuse a trust relationship to download malicious content.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.41%

32.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 14.0
Apple	Iphone Os	< 14.0
Apple	Tvos	< 14.0

References

http://seclists.org/fulldisclosure/2020/Nov/19Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2020/Nov/20Mailing List, Third Party Advisory
https://support.apple.com/en-us/HT211843Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT211850Release Notes, Vendor Advisory
http://seclists.org/fulldisclosure/2020/Nov/19Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2020/Nov/20Mailing List, Third Party Advisory
https://support.apple.com/en-us/HT211843Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT211850Release Notes, Vendor Advisory

Timeline

Published: Oct 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9979?

A trust issue was addressed by removing a legacy API. This issue is fixed in iOS 14.0 and iPadOS 14.0, tvOS 14.0. An attacker may be able to misuse a trust relationship to download malicious content.

How severe is CVE-2020-9979?

CVE-2020-9979 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9979?

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-2020-9979?

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

Scan your code now

Source: NVD / NIST