CVE-2023-40400
CVE-2023-40400 is a critical-severity vulnerability in Apple Ipados 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
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Apple Ipados
- Published:
- Last modified:
Description
This issue was addressed with improved checks. This issue is fixed in tvOS 17, iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. A remote user may cause an unexpected app termination or arbitrary code execution.
Frequently asked questions
- What is CVE-2023-40400?
- This issue was addressed with improved checks. This issue is fixed in tvOS 17, iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. A remote user may cause an unexpected app termination or arbitrary code execution.
- How severe is CVE-2023-40400?
- CVE-2023-40400 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-2023-40400 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-40400?
- CVE-2023-40400 primarily affects Apple Ipados. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2023-40400?
- 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-2023-40400 published?
- CVE-2023-40400 was published on 2023-09-27 and last updated on 2026-06-17.
References
- http://seclists.org/fulldisclosure/2023/Oct/10
- http://seclists.org/fulldisclosure/2023/Oct/3
- http://seclists.org/fulldisclosure/2023/Oct/8
- http://seclists.org/fulldisclosure/2023/Oct/9
- https://support.apple.com/en-us/HT213936
- https://support.apple.com/en-us/HT213937
- https://support.apple.com/en-us/HT213938
- https://support.apple.com/en-us/HT213940
- https://support.apple.com/kb/HT213841
- https://support.apple.com/kb/HT213936
- https://support.apple.com/kb/HT213937
- https://support.apple.com/kb/HT213938
- https://support.apple.com/kb/HT213940
Affected products (5)
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
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