CVE-2023-40397

CVE-2023-40397 is a critical-severity vulnerability in Apple Macos with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

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.

Frequently asked questions

What is CVE-2023-40397?
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.
How severe is CVE-2023-40397?
CVE-2023-40397 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40397 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40397?
CVE-2023-40397 primarily affects Apple Macos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-40397?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-40397 published?
CVE-2023-40397 was published on 2023-09-06 and last updated on 2026-06-17.

References

Affected products (3)

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