CVE-2020-9818

Known Exploited

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5. Processing a maliciously crafted mail message may lead to unexpected memory modification or application termination.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.56%
KEV Since 
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple iOS
Affected: Apple iOS-1
Affected: Apple watchOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/HT211168 release notes vendor advisory
https://support.apple.com/HT211175 release notes vendor advisory
https://support.apple.com/HT211169 release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-9818?
CVE-2020-9818 has been scored as a high severity vulnerability.
How to fix CVE-2020-9818?
To fix CVE-2020-9818, 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-2020-9818 being actively exploited in the wild?
It is confirmed that CVE-2020-9818 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-9818?
CVE-2020-9818 affects Apple iOS, Apple iOS-1, Apple watchOS.
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