Vulnerability · Published Sep 8, 2021 · Assigned by apple

CVE-2021-30655

Critical 9.8

In plain English

A critical-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 2.3% (higher than 83% of all known vulnerabilities).

Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)2.3%top 16.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An application may be able to execute arbitrary code with system privileges. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina. The issue was addressed with improved permissions logic.

Affected products (as reported)

VendorProductVersions
Apple macOS unspecified – before 11.3
Apple macOS unspecified – before 2021

References