CVE-2021-1784

Description

A permissions issue existed in DiskArbitration. This was addressed with additional ownership checks. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A malicious application may be able to modify protected parts of the file system.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.51%

Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com

Affected: Apple macOS

References

Link	Tags
https://support.apple.com/en-us/HT212325	vendor advisory
https://support.apple.com/en-us/HT212326	vendor advisory
https://support.apple.com/en-us/HT212327	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-1784?: CVE-2021-1784 has been scored as a high severity vulnerability.
How to fix CVE-2021-1784?: To fix CVE-2021-1784, 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-2021-1784 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-1784 is being actively exploited. 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-2021-1784?: CVE-2021-1784 affects Apple macOS, Apple macOS, Apple macOS.

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