CVE-2020-9955

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0, macOS Big Sur 11.0.1. Processing a maliciously crafted image may lead to arbitrary code execution.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.37%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple tvOS
Affected: Apple watchOS
Affected: Apple iOS and iPadOS
Affected: Apple macOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT211843 vendor advisory
https://support.apple.com/en-us/HT211850 vendor advisory
https://support.apple.com/en-us/HT211844 vendor advisory
https://support.apple.com/en-us/HT211931 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-9955?
CVE-2020-9955 has been scored as a high severity vulnerability.
How to fix CVE-2020-9955?
To fix CVE-2020-9955, 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-2020-9955 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-9955 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-2020-9955?
CVE-2020-9955 affects Apple tvOS, Apple watchOS, Apple iOS and iPadOS, Apple macOS.
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