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Vulnerability record · CVE-2023-40391 · published 27 September 2023

CVE-2023-40391: Apple xcode vulnerability

Apple · Xcode

The issue was addressed with improved memory handling. This issue is fixed in tvOS 17, iOS 17 and iPadOS 17, macOS Sonoma 14, Xcode 15. An app may be able to disclose kernel memory.

5.5 CVSS 3.1 Medium EPSS 0.32% · top 74.3%
5.5CVSS 3.1 base score
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
19References
17 Jun 2026Last modified by NVD

Description

The issue was addressed with improved memory handling. This issue is fixed in tvOS 17, iOS 17 and iPadOS 17, macOS Sonoma 14, Xcode 15. An app may be able to disclose kernel memory.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://seclists.org/fulldisclosure/2023/Oct/10
http://seclists.org/fulldisclosure/2023/Oct/3
http://seclists.org/fulldisclosure/2023/Oct/7 Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2023/Oct/8
https://support.apple.com/en-us/HT213936 Release NotesVendor Advisory
https://support.apple.com/en-us/HT213938 Release NotesVendor Advisory
https://support.apple.com/en-us/HT213939 Release NotesVendor Advisory
https://support.apple.com/en-us/HT213940 Release NotesVendor Advisory
http://seclists.org/fulldisclosure/2023/Oct/10
http://seclists.org/fulldisclosure/2023/Oct/3
http://seclists.org/fulldisclosure/2023/Oct/7 Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2023/Oct/8
https://support.apple.com/en-us/HT213936 Release NotesVendor Advisory
https://support.apple.com/en-us/HT213938 Release NotesVendor Advisory
https://support.apple.com/en-us/HT213939 Release NotesVendor Advisory
https://support.apple.com/en-us/HT213940 Release NotesVendor Advisory
https://support.apple.com/kb/HT213936
https://support.apple.com/kb/HT213939
https://support.apple.com/kb/HT213940

Track CVE-2023-40391 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-40391), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.