CVE-2021-30856 json
This issue was addressed by adding a new Remote Login option for opting into Full Disk Access for Secure Shell sessions.
published 2021-08-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17773
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Apple macOS 11.3
Exploit prediction
0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Affected products
- Apple macOS
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
Sources
- CVE List CVE-2021-30856
- NVD CVE-2021-30856
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