CVE-2020-3877
HIGHCVSS 7.5/10EPSS 2.05%
Last modified
CVE-2020-3877 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3, watchOS 6.1.2. EPSS estimates a 2.05% chance of exploitation in the next 30 days.
Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3, watchOS 6.1.2. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Mac Os X | < 10.15.3 |
| Apple | Watchos | < 6.1.2 |
References
- https://support.apple.com/HT210919Release Notes, Vendor Advisory
- https://support.apple.com/HT210921Release Notes, Vendor Advisory
- https://support.apple.com/HT210919Release Notes, Vendor Advisory
- https://support.apple.com/HT210921Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-3877?
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3, watchOS 6.1.2. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
How severe is CVE-2020-3877?
CVE-2020-3877 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.05% probability of exploitation in the next 30 days.
How do I fix CVE-2020-3877?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2020-3877?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST