Is CVE-2023-40455 being actively exploited?

CVE-2023-40455 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2023-40455?

CVE-2023-40455 has a CVSS 3.1 base score of 10.0 (CRITICAL).

CVE-2023-40455

CRITICAL · CVSS 10.0EPSS 1.3%EU EUVD

A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Sonoma 14. A sandboxed process may be able to circumvent sandbox restrictions.

Key facts

CVSS score: 10.0 (v3.1)
Severity: CRITICAL
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS score: 1.3% (71th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2023-45026)
Published: September 27, 2023
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2023-45026 in the EU Vulnerability Database. Last updated in EUVD on November 4, 2025.

View on the EU Vulnerability Database

Affected products

apple / macos

Certified products that may be affected

10 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Strong Customer Authentication for Apple Pay, on MacBook Air 2022 with M2 running macOS Ventura 13.3.1 - Apple Inc. - Common Criteria 2023-9-INF-4307 - active
Strong Customer Authentication for Apple Pay on Mac mini with M2 and Magic keyboard with Touch ID, running macOS Ventura 13.3.1 , macOS Ventura 13.3.1 (build 22E261) ( ANSSI-CC-2023/61) - Apple Inc. - Common Criteria ANSSI-CC-2023/61 - active
Strong Customer Authentication pour Apple Pay sur Mac mini avec M1 et Magic keyboard avec Touch ID, exécutant macOS Monterey 12.3.1 (Version 12.3.1 (build 21E258)) - Apple Inc. - Common Criteria ANSSI-CC-2023/19 - active
Strong Customer Authentication pour Apple Pay sur MacBook Air 2020 avec M1 exécutant macOS Monterey 12.3.1 (Version 12.3.1 (build 21E258)) - Apple Inc. - Common Criteria ANSSI-CC-2023/16 - active
Strong Customer Authentication pour Apple Pay, sur MacBook Air 2020 avec M1 exécutant macOS Big Sur 11.3.1 - Apple Inc. - Common Criteria ANSSI-CC-2022/44 - active

See all 10 in the Security Certifications Explorer.

References

http://seclists.org/fulldisclosure/2023/Oct/3(Mailing List, Third Party Advisory)
https://support.apple.com/en-us/HT213940(Release Notes, Vendor Advisory)
https://support.apple.com/kb/HT213940

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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