How severe is CVE-2023-40401?

CVE-2023-40401 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-40401 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40401?

CVE-2023-40401 affects Apple Macos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40401?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-40401 published?

CVE-2023-40401 was published on 2023-10-25 and last updated on 2026-06-17.

CVE-2023-40401

CVE-2023-40401 is a high-severity vulnerability in Apple Macos with a CVSS 3.x base score of 7.5. 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-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Apple Macos
Published: 2023-10-25
Last modified: 2026-06-17

Description

The issue was addressed with additional permissions checks. This issue is fixed in macOS Ventura 13.6.1. An attacker may be able to access passkeys without authentication.

Frequently asked questions

What is CVE-2023-40401?: The issue was addressed with additional permissions checks. This issue is fixed in macOS Ventura 13.6.1. An attacker may be able to access passkeys without authentication.
How severe is CVE-2023-40401?: CVE-2023-40401 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-40401 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40401?: CVE-2023-40401 affects Apple Macos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40401?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-40401 published?: CVE-2023-40401 was published on 2023-10-25 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Apple Macos

CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-44148 — Critical (CVSS 10.0): This issue was addressed with improved validation of file attributes. This issue is fixed in macOS Sequoia 15. An app…
CVE-2024-44146 — Critical (CVSS 10.0): A logic issue was addressed with improved file handling. This issue is fixed in macOS Sequoia 15. An app may be able to…
CVE-2023-40455 — Critical (CVSS 10.0): A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Sonoma 14. A sandboxed…

All CVEs affecting Apple Macos →

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →