CVE-2021-30860

Known Exploited

Description

An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 69.81% Top 5%
KEV Since 
Vendor Advisory gentoo.org Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple macOS
Affected: Apple macOS
Affected: Apple watchOS
Affected: Apple iOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT212804 vendor advisory
https://support.apple.com/en-us/HT212805 vendor advisory
https://support.apple.com/en-us/HT212807 vendor advisory
https://support.apple.com/en-us/HT212806 vendor advisory
http://seclists.org/fulldisclosure/2021/Sep/28 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/27 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/25 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/26 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/40 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/38 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Sep/39 third party advisory mailing list
https://support.apple.com/kb/HT212824 vendor advisory
http://seclists.org/fulldisclosure/2021/Sep/50 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2022/09/02/11 mailing list
https://security.gentoo.org/glsa/202209-21 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-30860?
CVE-2021-30860 has been scored as a high severity vulnerability.
How to fix CVE-2021-30860?
To fix CVE-2021-30860, 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-2021-30860 being actively exploited in the wild?
It is confirmed that CVE-2021-30860 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~70% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-30860?
CVE-2021-30860 affects Apple macOS, Apple macOS, Apple watchOS, Apple iOS.
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