How severe is CVE-2023-32387?

CVE-2023-32387 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-2023-32387 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-32387?

CVE-2023-32387 affects Apple Macos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-32387?

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-2023-32387 published?

CVE-2023-32387 was published on 2023-06-23 and last updated on 2026-06-17.

CVE-2023-32387

CVE-2023-32387 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. The underlying weakness is classified as CWE-416.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Apple Macos
Published: 2023-06-23
Last modified: 2026-06-17

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.7.7, macOS Monterey 12.6.6, macOS Ventura 13.4. A remote attacker may be able to cause unexpected app termination or arbitrary code execution.

Frequently asked questions

What is CVE-2023-32387?: A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.7.7, macOS Monterey 12.6.6, macOS Ventura 13.4. A remote attacker may be able to cause unexpected app termination or arbitrary code execution.
How severe is CVE-2023-32387?: CVE-2023-32387 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-2023-32387 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-32387?: CVE-2023-32387 affects Apple Macos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-32387?: 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-2023-32387 published?: CVE-2023-32387 was published on 2023-06-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

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