CVE-2020-9939
This issue was addressed with improved checks. This issue is fixed in macOS Catalina 10.15.6. A...
This issue was addressed with improved checks. This issue is fixed in macOS Catalina 10.15.6. A local user may be able to load unsigned kernel extensions.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
This issue was addressed with improved checks. This issue is fixed in macOS Catalina 10.15.6. A local user may be able to load unsigned kernel extensions.
- Record
CVE-2020-9939- CVSS 3.1
- 6.4 Medium
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.4 Medium
AV:L/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-367
- Updated
- 2026-11-02
CVE List No score
This issue was addressed with improved checks. This issue is fixed in macOS Catalina 10.15.6. A local user may be able to load unsigned kernel extensions.
- Record
CVE-2020-9939- Updated
- 2026-11-02
EUVDEUVD-2020-30718 No score
This issue was addressed with improved checks. This issue is fixed in macOS Catalina 10.15.6. A local user may be able to load unsigned kernel extensions.
- Record
EUVD-2020-30718- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3cvr-9v2w-rhhq No score
This issue was addressed with improved checks. This issue is fixed in macOS Catalina 10.15.6. A...
This issue was addressed with improved checks. This issue is fixed in macOS Catalina 10.15.6. A local user may be able to load unsigned kernel extensions.
- Record
GHSA-3cvr-9v2w-rhhq- Weakness
- CWE-367
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-9939 is a medium vulnerability (CVSS 6.4) in Apple Macos, published October 22, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. No source names a fixed version.