Vulnerability · Published Sep 8, 2021 · Assigned by apple

CVE-2021-1839

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 22% of all known vulnerabilities).

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.3%top 77.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be able to elevate their privileges.

Affected products (as reported)

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

References