CVE-2021-30681

moderate-risk
Published 2021-09-08

A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. This issue is fixed in Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. A malicious application may be able to gain root privileges.

Do I need to act?

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0.16% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (20)

Affected Vendors

Apple

References (10)

Release Notes https://support.apple.com/en-us/HT212528
Release Notes https://support.apple.com/en-us/HT212529
Release Notes https://support.apple.com/en-us/HT212530
Release Notes https://support.apple.com/en-us/HT212531
Release Notes https://support.apple.com/en-us/HT212533
Release Notes https://support.apple.com/en-us/HT212528
Release Notes https://support.apple.com/en-us/HT212529
Release Notes https://support.apple.com/en-us/HT212530
Release Notes https://support.apple.com/en-us/HT212531
Release Notes https://support.apple.com/en-us/HT212533
48
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 1/34 · Minimal
Exposure 23/34 · High