# CVE-2019-8526: Apple macOS Use-After-Free Vulnerability

Source: https://junglewise.ai/threats/cve-2019-8526-apple-macos-use-after-free-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-04-17. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2019-8526 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2023-04-17

A use-after-free vulnerability in Apple macOS was addressed through improved memory management. A local application may exploit this flaw to gain elevated privileges on the system.

Technologies: [Apple macOS](https://junglewise.ai/threats/technologies/macos). Vendors: [Apple](https://junglewise.ai/threats/vendors/apple).

## Quick answers

**Is CVE-2019-8526 exploited in the wild?** Yes. CVE-2019-8526 is known to be exploited in the wild, first recorded on 17 April 2023. Treat it as urgent.

**How severe is CVE-2019-8526?** Critical severity, with a CVSS score of 7.8, published 17 April 2023.

**Which products and versions are affected?** Apple macOS Mojave versions up to (excluding) 10.14.4.

**Is there a fix for CVE-2019-8526?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2019-8526 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2019-8526?** Check whether you run Apple macOS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Apple macOS Mojave versions up to (excluding) 10.14.4

## Timeline

- 2019-12-18: disclosed: NVD Published Date
- 2023-04-17: kev added: Added to CISA Known Exploited Vulnerabilities Catalog

## Related threats

- [Apple Bluetooth use-after-free vulnerability](https://junglewise.ai/threats/cve-2026-113970-a-use-after-free-issue-was-addressed-with-improved-memory)
- [Apple iOS, iPadOS, macOS, and related platforms rate limit bypass in AirPlay pairing](https://junglewise.ai/threats/cve-2026-113969-a-logic-issue-was-addressed-with-improved-state-management-this)
- [Apple iOS and iPadOS Bluetooth pairing code rate limit bypass](https://junglewise.ai/threats/cve-2026-113968-a-logic-issue-was-addressed-with-improved-state-management-this)
- [Apple iOS/iPadOS Bluetooth pairing bypass](https://junglewise.ai/threats/cve-2026-113965-this-issue-was-addressed-with-improved-checks-this-issue-is)
- [Apple iOS, iPadOS, macOS, Safari, tvOS, watchOS pointer authentication bypass](https://junglewise.ai/threats/cve-2024-27834-apple-multiple-products-improper-authentication-vulnerability)