CVE-2020-9827: Input Validation

Published May 18, 2020
·
Updated

A denial of service issue was addressed with improved input validation. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. A remote attacker may be able to cause a denial of service.

Other sources

Accounts. A denial of service issue was addressed with improved input validation.

Credit

Jannik Lorenz(SEEMOO)

Affected Software

12 affected componentsFixes available
Apple tvOS<13.4.5
13.4.5
Apple macOS Catalina<10.15.5
10.15.5
Apple Mojave
Apple High Sierra
Apple WatchOS<6.2.5
6.2.5
Apple iOS<13.5
13.5
Apple iPadOS<13.5
13.5
Apple iPadOS<13.5
Apple iPhone OS<13.5
Apple iOS and macOS<10.15.5
Apple tvOS<13.4.5
Apple WatchOS<6.2.5

Event History

Jun 9, 2020
CVE Published
via MITRE·04:14 PM
Data Sourced
via MITRE·04:14 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2020-9827?

CVE-2020-9827 is a vulnerability in the Accounts feature that could be exploited to cause a denial of service.

2

How does CVE-2020-9827 affect Apple watchOS?

CVE-2020-9827 affects Apple watchOS versions up to but excluding 6.2.5.

3

How does CVE-2020-9827 affect Apple macOS Catalina?

CVE-2020-9827 affects Apple macOS Catalina versions up to but excluding 10.15.5.

4

How does CVE-2020-9827 affect Apple iOS?

CVE-2020-9827 affects Apple iOS versions up to but excluding 13.5.

5

How does CVE-2020-9827 affect Apple iPadOS?

CVE-2020-9827 affects Apple iPadOS versions up to but excluding 13.5.

6

How does CVE-2020-9827 affect Apple tvOS?

CVE-2020-9827 affects Apple tvOS versions up to but excluding 13.4.5.

7

How severe is CVE-2020-9827?

CVE-2020-9827 is a denial of service vulnerability that has been addressed with improved input validation.

8

How do I fix CVE-2020-9827?

To fix CVE-2020-9827, update to Apple watchOS 6.2.5, macOS Catalina 10.15.5, iOS 13.5, iPadOS 13.5, or tvOS 13.4.5.

9

What is the Common Weakness Enumeration (CWE) ID for CVE-2020-9827?

The CWE ID for CVE-2020-9827 is 20.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203
CVE-2020-9827 - Input Validation - SecAlerts