CVE-2023-40400

This issue was addressed with improved checks. This issue is fixed in tvOS 17, iOS 17 and iPadOS...

9.8 Critical

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.83%Up 1.8 points since Sep 27, 2023

What each source reports

NVD Score used9.8

Record: CVE-2023-40400
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

CVE List9.8

Record: CVE-2023-40400
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

EUVDEUVD-2023-449719.8

Record: EUVD-2023-44971
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-6m3p-g8r6-fxvf9.8

This issue was addressed with improved checks. This issue is fixed in tvOS 17, iOS 17 and iPadOS...

Record: GHSA-6m3p-g8r6-fxvf
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-40400 is a critical vulnerability (CVSS 9.8) in Apple Ipados, published September 26, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.83%, the 79th percentile. No source names a fixed version.

References

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