CVE-2020-9939 json
This issue was addressed with improved checks.
published 2020-10-22 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-30718
- cvss
- 6.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Apple macOS macOS Catalina 10.15.6
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.4 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Apple macOS
Classification
- Weakness
-
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
References
-
support.apple.com
/kb/HT211289
vendor-advisory
Sources
- CVE List CVE-2020-9939
- NVD CVE-2020-9939
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.