CVE-2020-3839
CVE-2020-3839 is a medium-severity vulnerability in Apple Mac Os X with a CVSS 3.x base score of 5.5. 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-20.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 2.1
- EPSS exploit prediction: 0% (26th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Apple Mac Os X
- Published:
- Last modified:
Description
A validation issue was addressed with improved input sanitization. This issue is fixed in macOS Catalina 10.15.3. An application may be able to read restricted memory.
Frequently asked questions
- What is CVE-2020-3839?
- A validation issue was addressed with improved input sanitization. This issue is fixed in macOS Catalina 10.15.3. An application may be able to read restricted memory.
- How severe is CVE-2020-3839?
- CVE-2020-3839 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2020-3839 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-3839?
- CVE-2020-3839 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-3839?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-3839 published?
- CVE-2020-3839 was published on 2020-02-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
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