CVE-2021-1807: Input Validation

Published Apr 26, 2021
·
Updated

A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4. A local user may be able to write arbitrary files.

Other sources

Safari. A validation issue was addressed with improved input sanitization.

Apple

Credit

David Schütz@@xdavidhu

Affected Software

6 affected componentsFixes available
Apple WatchOS<7.4
7.4
Apple iOS<14.5
14.5
Apple iPadOS<14.5
14.5
Apple iPadOS<14.5
Apple iPhone OS<14.5
Apple WatchOS<7.4

Event History

Sep 8, 2021
CVE Published
via MITRE·02:55 PM
Data Sourced
via MITRE·02:55 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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-2021-1807?

CVE-2021-1807 is a vulnerability in Safari that was addressed with improved input sanitization.

2

How does CVE-2021-1807 impact Apple iOS?

CVE-2021-1807 affects Apple iOS versions up to and excluding 14.5.

3

How does CVE-2021-1807 impact Apple iPadOS?

CVE-2021-1807 affects Apple iPadOS versions up to and excluding 14.5.

4

How does CVE-2021-1807 impact Apple watchOS?

CVE-2021-1807 affects Apple watchOS versions up to and excluding 7.4.

5

Where can I find more information about CVE-2021-1807?

You can find more information about CVE-2021-1807 on the Apple support website.

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