CVE-2021-1843

Description

This issue was addressed with improved checks. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted image may lead to arbitrary code execution.

7.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.34%

Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com

Affected: Apple iOS and iPadOS

Affected: Apple tvOS

Affected: Apple watchOS

Affected: Apple macOS

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
https://support.apple.com/en-us/HT212325	vendor advisory
https://support.apple.com/en-us/HT212326	vendor advisory
https://support.apple.com/en-us/HT212327	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-1843?: CVE-2021-1843 has been scored as a high severity vulnerability.
How to fix CVE-2021-1843?: To fix CVE-2021-1843, 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-2021-1843 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-1843 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-1843?: CVE-2021-1843 affects Apple iOS and iPadOS, Apple tvOS, Apple watchOS, Apple macOS, Apple macOS, Apple macOS.

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