CVE-2021-30751
This issue was addressed with improved data protection. This issue is fixed in macOS Big Sur 11.4...
This issue was addressed with improved data protection. This issue is fixed in macOS Big Sur 11.4. A malicious application may be able to bypass certain Privacy preferences.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
This issue was addressed with improved data protection. This issue is fixed in macOS Big Sur 11.4. A malicious application may be able to bypass certain Privacy preferences.
- Record
CVE-2021-30751- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Updated
- 2026-11-02
CVE ListNo score
This issue was addressed with improved data protection. This issue is fixed in macOS Big Sur 11.4. A malicious application may be able to bypass certain Privacy preferences.
- Record
CVE-2021-30751- Updated
- 2026-11-02
EUVDEUVD-2021-17668No score
This issue was addressed with improved data protection. This issue is fixed in macOS Big Sur 11.4. A malicious application may be able to bypass certain Privacy preferences.
- Record
EUVD-2021-17668- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m4jg-5f6h-v8q3
This issue was addressed with improved data protection. This issue is fixed in macOS Big Sur 11.4...
This issue was addressed with improved data protection. This issue is fixed in macOS Big Sur 11.4. A malicious application may be able to bypass certain Privacy preferences.
- Record
GHSA-m4jg-5f6h-v8q3- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-30751 is a medium vulnerability (CVSS 5.5) in Apple Macos, published September 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.77%, the 56th percentile. No source names a fixed version.