Apple macOS Use-After-Free Vulnerability

Added to KEV
2023-04-17
Federal due date
2023-05-08
Vendor
Apple
Product
macOS
EPSS
43.5th percentile (score 0.002, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2019-8526

CISA short description

Apple macOS contains a use-after-free vulnerability that could allow for privilege escalation.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.