CVE-2021-1855: Medium severity apple macos vulnerability

Published Apr 26, 2021
·
Updated

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3. A malicious website may be able to force unnecessary network connections to fetch its favicon.

Other sources

Safari. A logic issue was addressed with improved state management.

Credit

Håvard Mikkelsen Ottestad(HASMAC AS)

Affected Software

2 affected componentsFixes available
Apple macOS Big Sur<11.3
11.3
macOS>=11.0<11.3

Event History

Sep 8, 2021
CVE Published
via MITRE·02:45 PM
Data Sourced
via MITRE·02:45 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2021-1855?

CVE-2021-1855 is a vulnerability in Safari that was addressed with improved state management.

2

How does CVE-2021-1855 impact Apple macOS Big Sur 11.3?

CVE-2021-1855 affects Apple macOS Big Sur 11.3.

3

Is there a fix available for CVE-2021-1855?

Yes, the vulnerability has been addressed in Apple macOS Big Sur 11.3.

4

Where can I find more information about CVE-2021-1855?

You can find more information about CVE-2021-1855 on the Apple support website.

Contact

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