Vulnerability · Published Sep 8, 2021 · Assigned by apple

CVE-2021-30784

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 74.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Multiple issues were addressed with improved logic. This issue is fixed in macOS Big Sur 11.5. A local attacker may be able to execute code on the Apple T2 Security Chip.

Affected products (as reported)

Vendor	Product	Versions
Apple	macOS	unspecified – before 11.5

References

https://support.apple.com/kb/HT212603 x_refsource_CONFIRM
https://support.apple.com/kb/HT212600 x_refsource_CONFIRM
https://support.apple.com/en-us/HT212602 x_refsource_MISC