CVE-2020-27900

low-risk

Published 2020-12-08

An issue existed in the handling of snapshots. The issue was resolved with improved permissions logic. This issue is fixed in macOS Big Sur 11.0.1. A malicious application may be able to preview files it does not have access to.

Do I need to act?

0.23% 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 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Macos

Affected Vendors

Apple

References (4)

Mailing List http://seclists.org/fulldisclosure/2020/Dec/32

Vendor Advisory https://support.apple.com/en-us/HT211931

Mailing List http://seclists.org/fulldisclosure/2020/Dec/32

Vendor Advisory https://support.apple.com/en-us/HT211931

/ 100

low-risk

Severity 18/34 · Moderate

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal