high Known exploitedREV. 01

CVE-2019-8526macOS — an application that raises its own privileges

A use-after-free in macOS lets an application gain privileges it was never granted. Apple addressed it with better memory management in Mojave 10.14.4 and published nothing about which component is at fault.

YOUR NEXT MOVE

Update macOS to Mojave 10.14.4 or later. A machine that never left an older release keeps this one, and Mojave itself is now out of support too.

Read the risk

THE VITAL STATS
CVSS score
7.8/ 10
CVSS v3.1
EPSS probability
1%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2019-12-18
Added to KEV
2023-04-17
Exploit published
Not recorded
Confidence
medium
Kill chain
privilege escalation
MITRE ATT&CK
T1068
Severity
high

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

Attacker needsThe attacker must get an application onto the machine.

Fixed inmacOS Mojave 10.14.4

Behind the card

3 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2019-8526 · CRDS 0.1 · Issued 2026-09-24