CVE-2021-1870

Known Exploited

Description

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..

9.8

CVSS

Severity: Critical

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.55%

KEV Since

Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory apple.com Vendor Advisory apple.com

Affected: Apple iOS and iPadOS

Affected: Apple macOS

References

Link	Tags
https://support.apple.com/en-us/HT212147	release notes vendor advisory
https://support.apple.com/en-us/HT212146	release notes vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/	vendor advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/	vendor advisory mailing list
https://security.gentoo.org/glsa/202104-03	third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-1870?: CVE-2021-1870 has been scored as a critical severity vulnerability.
How to fix CVE-2021-1870?: To fix CVE-2021-1870, 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-2021-1870 being actively exploited in the wild?: It is confirmed that CVE-2021-1870 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-2021-1870?: CVE-2021-1870 affects Apple iOS and iPadOS, Apple macOS.

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