CVE-2019-8526
Apple macOS Use-After-Free Vulnerability
- High 7.8
- Exploited: added to CISA KEV 17 Apr 2023
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.
Key facts
- Published
- 18 Dec 2019
- Last changed
- 21 Oct 2025
- Assigned by
- apple
- KEV added
- 17 Apr 2023
- KEV fix due
- 8 May 2023
- EPSS
- 0.701% likely to be exploited in the next 30 days, higher than 53.776% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.8CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Apple | macOS |
|
Timeline
- 18 Dec 2019 Published
- 17 Apr 2023 CVE-2019-8526 added to CISA KEV
- 17 Apr 2023 Added to the CISA KEV catalogue