CVE-2020-9833
A memory initialization issue was addressed with improved memory handling. This issue is fixed in...
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.5. A local user may be able to read kernel memory.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.5. A local user may be able to read kernel memory.
- Record
CVE-2020-9833- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.9 Medium
AV:L/AC:L/Au:N/C:C/I:N/A:N - Weakness
- CWE-665
- Updated
- 2026-11-02
CVE List No score
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.5. A local user may be able to read kernel memory.
- Record
CVE-2020-9833- Updated
- 2026-11-02
EUVDEUVD-2020-30612 No score
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.5. A local user may be able to read kernel memory.
- Record
EUVD-2020-30612- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xrv2-p88f-5qw2 No score
A memory initialization issue was addressed with improved memory handling. This issue is fixed in...
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.5. A local user may be able to read kernel memory.
- Record
GHSA-xrv2-p88f-5qw2- Weakness
- CWE-119
- 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-2020-9833 is a medium vulnerability (CVSS 5.5) in Apple Macos, published June 9, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. No source names a fixed version.