CVE-2021-1864

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. An attacker with JavaScript execution may be able to execute arbitrary code.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.69% Top 20%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple iOS and iPadOS
Affected: Apple tvOS
Affected: Apple watchOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT212317 vendor advisory
https://support.apple.com/en-us/HT212323 vendor advisory
https://support.apple.com/en-us/HT212324 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-1864?
CVE-2021-1864 has been scored as a critical severity vulnerability.
How to fix CVE-2021-1864?
To fix CVE-2021-1864, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-1864 being actively exploited in the wild?
It is possible that CVE-2021-1864 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-1864?
CVE-2021-1864 affects Apple iOS and iPadOS, Apple tvOS, Apple watchOS.
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