CVE-2023-40398

HIGHNVD 8.88.8—

8.8

This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.6.4, macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4. A sandboxed process may be able to circumvent sandbox restrictions.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 9.0%
KEV: Not listed

Published

July 29, 2024

Last Modified

March 13, 2025

References (8)

product-security@applehttps://support.apple.com/en-us/HT213670
product-security@applehttps://support.apple.com/en-us/HT213675
product-security@applehttps://support.apple.com/en-us/HT213676
product-security@applehttps://support.apple.com/en-us/HT213677
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213670
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213675
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213676
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213677

Data Freshness Timeline

(refreshed 11× in last 7d / 57× 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.

2026-06-23 21:31 UTCEPSS rescore
2026-06-23 21:31 UTCEPSS rescore
2026-06-22 14:24 UTCEPSS rescore
2026-06-22 14:24 UTCEPSS rescore
2026-06-21 14:55 UTCEPSS rescore
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2026-06-21 01:58 UTCEPSS rescore
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2026-06-19 19:24 UTCEPSS rescore
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2026-06-18 17:51 UTCEPSS rescore
2026-06-16 17:51 UTCEPSS rescore
2026-06-16 17:51 UTCEPSS rescore
2026-06-15 17:47 UTCEPSS rescore
2026-06-15 17:47 UTCEPSS rescore
2026-06-14 23:16 UTCEPSS rescore
2026-06-13 22:59 UTCEPSS rescore
2026-06-13 22:59 UTCEPSS rescore
2026-06-12 23:10 UTCEPSS rescore
2026-06-12 23:10 UTCEPSS rescore
2026-06-11 13:59 UTCEPSS rescore
2026-06-11 13:59 UTCEPSS rescore
2026-06-10 22:17 UTCEPSS rescore
2026-06-10 13:21 UTCEPSS rescore
2026-06-10 13:21 UTCEPSS rescore

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2026-06-08 14:16 UTCEPSS rescore
2026-06-08 14:16 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-05-31 22:30 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:43 UTCEPSS rescore
2026-05-29 13:43 UTCEPSS rescore
2026-05-28 13:44 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-27 13:39 UTCEPSS rescore
2026-05-27 13:39 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-23 13:54 UTCEG score recompute
2026-05-23 13:54 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-40398?

CVE-2023-40398 is a high vulnerability published on July 29, 2024. This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.6.4, macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4. A sandboxed process may be able to circumvent sandbox restrictions.

When was CVE-2023-40398 disclosed?

CVE-2023-40398 was first published in the National Vulnerability Database on July 29, 2024, with the most recent update on March 13, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-40398 actively exploited?

CVE-2023-40398 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-40398?

CVE-2023-40398 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2023-40398?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-40398, 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.

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CVE-2023-40398

📅 Published

🔄 Last Modified

🔗 References (8)