CVE-2020-9939
CVE-2020-9939 is a medium-severity vulnerability in Apple Mac Os X with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-367.
Key facts
- Severity: Medium (CVSS 3.x base score 6.4)
- CVSS v2: 4.4
- EPSS exploit prediction: 0% (7th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-367
- Affected product: Apple Mac Os X
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2020-9939?
- 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.
- How severe is CVE-2020-9939?
- CVE-2020-9939 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-9939 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-9939?
- CVE-2020-9939 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-9939?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-9939 published?
- CVE-2020-9939 was published on 2020-10-22 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
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