Vulnerability in Apple iOS

CVE-2019-8591

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1. An application may be able to cause unexpected system termination or write kernel memory.

EPSS: 0.044 (90.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-8591?
CVE-2019-8591 is a high-severity vulnerability in Apple iOS, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.1/10. Published 2019-12-18.
How severe is CVE-2019-8591?
High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2019-8591 known to be exploited?
7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.