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

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.

7.8 HIGHEPSS 0.70%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 02:42 UTC

OverviewCVSS details

7.8HIGHCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Dec 18, 2019
Assigner: apple

Affected

macOS (Apple)

Versions: before macOS Mojave 10.14.4
Fixed in: macOS Mojave 10.14.4

Exploitation

Public exploit: None listed
CISA KEV: Listed · Apr 17, 2023
KEV due date: May 8, 2023
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 6

0.70%chance of exploitation in 30 days

Higher than 53.40% of CVEs

CVSS 3.1 · NVD

7.8High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

7.2High

AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack vector: Local
Attack complexity: Low
Authentication: None
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
7.8	HIGH	3.1NVD	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2	HIGH	2.0NVD	AV:L/AC:L/Au:N/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due May 8, 2023

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Details

CVE ID: CVE-2019-8526
Status: Analyzed
Assigner (CNA): apple
Published: Dec 18, 2019
Last modified: 2026-06-17 02:42 UTC
Weaknesses: CWE-416

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-07 13:59 UTC.