An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the "Grand Central Dispatch" component. It allows attackers to bypass a sandbox protection mechanism by leveraging the misparsing of entitlement plists.
CVE-2018-4229
CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence
Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 10.0; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 10.0Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 10.0
- EG Score
- 10.0(medium)
- EPSS
- 79.3%
- KEV
- Not listed
Published
June 8, 2018
Last Modified
November 21, 2024
Advisory Details (2)
Auto-updated Jul 4, 2026No patch confirmed yet.
generic
About the security content of macOS High Sierra 10.13.5, Security Update 2018-003 Sierra, Security Update 2018-003 El Capitan - Apple Support
https://support.apple.com/HT208849Data Freshness Timeline
(refreshed 12× in last 7d / 47× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-28 07:03 UTCEG score recompute
- 2026-05-28 07:03 UTCGHSA enrichment
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Frequently asked(5)
What is CVE-2018-4229?
CVE-2018-4229 is a critical vulnerability published on June 8, 2018. An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the "Grand Central Dispatch" component. It allows attackers to bypass a sandbox protection mechanism by leveraging the misparsing of entitlement plists.
When was CVE-2018-4229 disclosed?
CVE-2018-4229 was first published in the National Vulnerability Database on June 8, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-4229 actively exploited?
CVE-2018-4229 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-4229?
CVE-2018-4229 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2018-4229?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-4229, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2018-4229
Is Your Infrastructure Affected by CVE-2018-4229?
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