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CVE-2021-30740

HIGHCVSS 7.8/10EPSS 1.43%

Last modified

CVE-2021-30740 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. EPSS estimates a 1.43% chance of exploitation in the next 30 days.

Description

A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. A malicious application may be able to execute arbitrary code with kernel privileges.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
1.43%

69.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
AppleIpados< 14.6
AppleIphone Os< 14.6
AppleMacos>= 11.0.1, < 11.4
AppleTvos< 14.6
AppleWatchos< 7.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-30740?
A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. A malicious application may be able to execute arbitrary code with kernel privileges.
How severe is CVE-2021-30740?
CVE-2021-30740 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.43% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30740?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-30740?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST