CVE-2021-30655

high-risk

Published 2021-09-08

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.

Do I need to act?

0.84% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (11)

Mac Os X

Macos

Affected Vendors

Apple

References (4)

Vendor Advisory https://support.apple.com/en-us/HT212325

Vendor Advisory https://support.apple.com/en-us/HT212326

Vendor Advisory https://support.apple.com/en-us/HT212325

Vendor Advisory https://support.apple.com/en-us/HT212326

/ 100

high-risk

Severity 32/34 · Critical

Exploitability 3/34 · Minimal

Exposure 16/34 · Moderate