What’s Vulnerable › Vulnerabilities
CVE-2019-8839
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-10-27 · updated 2026-06-17
- Weakness: CWE-120
Description
A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. An attacker in a privileged position may be able to perform a denial of service attack.
Affected products
- macOS: before 10.15.2 — fixed in 10.15.2
How to fix
Upgrade to a fixed version: macOS 10.15.2. Check the vendor advisory for mitigations.
References
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