CVE-2021-30755

Description

Processing a maliciously crafted font may result in the disclosure of process memory. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5. An out-of-bounds read was addressed with improved input validation.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.41%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: Apple macOS
Affected: Apple macOS
Affected: Apple macOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/en-us/HT212529 vendor advisory
https://support.apple.com/en-us/HT212532 vendor advisory
https://support.apple.com/en-us/HT212533 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-30755?
CVE-2021-30755 has been scored as a medium severity vulnerability.
How to fix CVE-2021-30755?
To fix CVE-2021-30755, 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-2021-30755 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-30755 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-30755?
CVE-2021-30755 affects Apple macOS, Apple macOS, Apple macOS.
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