CVE-2021-30688

moderate-risk

Published 2021-09-08

A malicious application may be able to break out of its sandbox. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. A path handling issue was addressed with improved validation.

Do I need to act?

0.04% 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 8.8/10 High

LOCAL / LOW complexity

Affected Products (10)

Mac Os X

Macos

Affected Vendors

Apple

References (4)

Release Notes https://support.apple.com/en-us/HT212529

Release Notes https://support.apple.com/en-us/HT212530

Release Notes https://support.apple.com/en-us/HT212529

Release Notes https://support.apple.com/en-us/HT212530

/ 100

moderate-risk

Severity 27/34 · High

Exploitability 0/34 · Minimal

Exposure 16/34 · Moderate