CVE-2019-8526
Apple macOS Use-After-Free Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 8 May 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Mojave 10.14.4. An application may be able to gain elevated privileges.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.70% probability · 53th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 17 April 2023 · due 8 May 2023
- Weakness
- CWE-416
- Affected
- apple/mac os x
- Source
- product-security@apple.com
EPSS 0.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://support.apple.com/en-us/HT209600; https://nvd.nist.gov/vuln/detail/CVE-2019-8526
References
- https://support.apple.com/HT209600Release Notes, Vendor Advisory
- https://support.apple.com/HT209600Release Notes, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8526US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.