Vulnerability · Published Aug 24, 2021 · Assigned by apple

CVE-2021-30922

High 7.8

In plain English

A high-severity security flaw in macOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)0.3%top 73.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Multiple out-of-bounds write issues were addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

Affected products (as reported)

Vendor	Product	Versions
Apple	macOS	unspecified – before 11.6

References

https://support.apple.com/kb/HT212871 x_refsource_CONFIRM
https://support.apple.com/kb/HT212869 x_refsource_CONFIRM
https://support.apple.com/en-us/HT212872 x_refsource_MISC