CVE-2023-40397

CRITICALNVD 9.89.8—

9.8

The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.5. A remote attacker may be able to cause arbitrary javascript code execution.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 68.0%
KEV: Not listed

Published

September 6, 2023

Last Modified

November 21, 2024

References (6)

product-security@applehttp://www.openwall.com/lists/oss-security/2023/09/11/1
product-security@applehttps://security.gentoo.org/glsa/202401-04
product-security@applehttps://support.apple.com/en-us/HT213843
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/09/11/1
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202401-04
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT213843

Patch Availability(9)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	webkitgtk4-0:2.48.3-2.el7_9	2025-07-07	redhat
redhat	webkit2gtk3-0:2.46.3-1.el8_4	2024-11-14	redhat
redhat	webkit2gtk3-0:2.46.3-1.el8_2	2024-11-14	redhat
redhat	webkit2gtk3-0:2.46.3-1.el8_6	2024-11-14	redhat
redhat	webkit2gtk3-0:2.46.3-1.el8_8	2024-11-14	redhat
redhat	webkit2gtk3-0:2.46.1-1.el9_2	2024-10-28	redhat
redhat	webkit2gtk3-0:2.46.1-1.el9_0	2024-10-28	redhat
redhat	webkit2gtk3-0:2.40.5-1.el8	2023-11-14	redhat
redhat	webkit2gtk3-0:2.40.5-1.el9	2023-11-07	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(9)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 60× 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
2026-06-21 01:58 UTCEPSS rescore
2026-06-19 19:24 UTCEPSS rescore
2026-06-19 19:24 UTCEPSS rescore
2026-06-18 17:51 UTCEPSS rescore
2026-06-17 17:51 UTCEPSS rescore
2026-06-17 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

Show 38 more

2026-06-10 13:21 UTCEPSS rescore
2026-06-10 13:21 UTCEPSS rescore
2026-06-09 21:17 UTCOSV refresh
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
2026-05-24 17:59 UTCEG score recompute
2026-05-24 17:59 UTCVendor advisory
2026-05-24 17:59 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-40397?

CVE-2023-40397 is a critical vulnerability published on September 6, 2023. The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.5. A remote attacker may be able to cause arbitrary javascript code execution.

When was CVE-2023-40397 disclosed?

CVE-2023-40397 was first published in the National Vulnerability Database on September 6, 2023, 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-2023-40397 actively exploited?

CVE-2023-40397 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 68.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-40397?

CVE-2023-40397 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2023-40397?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-40397, 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

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CVE-2023-40397

📅 Published

🔄 Last Modified

🔗 References (6)

Patch Availability(9)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-40397?

🔗 Related CVEs(same vendor)

Same vendor

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same vendor)