What’s Vulnerable › Vulnerabilities

CVE-2019-8853

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% 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-20

Description

A validation issue was addressed with improved input sanitization. This issue is fixed in macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra, macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. An application may be able to read restricted memory.

Affected products

• macOS: before 10.15.4 — fixed in 10.15.4

How to fix

Upgrade to a fixed version: macOS 10.15.4. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT210788
• https://support.apple.com/en-us/HT211100
• https://support.apple.com/en-us/HT210788
• https://support.apple.com/en-us/HT211100

Get alerted when CVE-2019-8853 or the next vulnerability affects your stack