CVE-2023-40448
CVE-2023-40448 is a high-severity vulnerability in Apple Ipados with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 8.6)
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Apple Ipados
- Published:
- Last modified:
Description
The issue was addressed with improved handling of protocols. This issue is fixed in tvOS 17, iOS 16.7 and iPadOS 16.7, watchOS 10, iOS 17 and iPadOS 17, macOS Sonoma 14. A remote attacker may be able to break out of Web Content sandbox.
Frequently asked questions
- What is CVE-2023-40448?
- The issue was addressed with improved handling of protocols. This issue is fixed in tvOS 17, iOS 16.7 and iPadOS 16.7, watchOS 10, iOS 17 and iPadOS 17, macOS Sonoma 14. A remote attacker may be able to break out of Web Content sandbox.
- How severe is CVE-2023-40448?
- CVE-2023-40448 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2023-40448 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-2023-40448?
- CVE-2023-40448 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-2023-40448?
- 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-2023-40448 published?
- CVE-2023-40448 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/4
- http://seclists.org/fulldisclosure/2023/Oct/8
- https://support.apple.com/en-us/HT213927
- 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/HT213927
- 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:*:*:*:*:*:*:*:*
More vulnerabilities in Apple Ipados
- 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-2022-32845 — Critical (CVSS 10.0): This issue was addressed with improved checks. This issue is fixed in watchOS 8.7, iOS 15.6 and iPadOS 15.6, macOS…
- CVE-2019-8779 — Critical (CVSS 10.0): A logic issue applied the incorrect restrictions. This issue was addressed by updating the logic to apply the correct…
- CVE-2026-28858 — Critical (CVSS 9.8): A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A…