CVE-2020-9931

Name: CVE-2020-9931
Creator: NVD / NIST
Published: 2020-10-16T17:15:17.48+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.57%

Last modified Jun 17, 2026

CVE-2020-9931 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A denial of service issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

Description

A denial of service issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6. A remote attacker may cause an unexpected application termination.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.57%

72.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 13.6
Apple	Iphone Os	< 13.6

References

https://support.apple.com/HT211288Release Notes, Vendor Advisory
https://support.apple.com/HT211288Release Notes, Vendor Advisory

Timeline

Published: Oct 16, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9931?

A denial of service issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6. A remote attacker may cause an unexpected application termination.

How severe is CVE-2020-9931?

CVE-2020-9931 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9931?

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-2020-9931?

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

Scan your code now

Source: NVD / NIST