SEPTEMBER 30, 2026
Live Feed
Back to database
Case File

CVE-2021-30856

CRITICAL · CVSS 9.1 EPSS 0.94%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-24 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. It may be remotely exploitable.

CVE
CVE-2021-30856
Severity
CRITICAL
CVSS
9.1
EPSS
0.94%

Original NVD Description

This issue was addressed by adding a new Remote Login option for opting into Full Disk Access for Secure Shell sessions. This issue is fixed in macOS Big Sur 11.3. A malicious unsandboxed app on a system with Remote Login enabled may bypass Privacy preferences.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-86950 HIGH CVE-2026-83964 MEDIUM CVE-2026-75698 CRITICAL CVE-2026-75697 CRITICAL CVE-2026-75689 CRITICAL CVE-2026-75686 CRITICAL