What is CVE-2024-40863?

CVE-2024-40863 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Information Disclosure. CVSS score: 5.5/10. Published 2024-09-17.

How severe is CVE-2024-40863?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Information disclosure in Apple iOS And Ipados

CVE-2024-40863

This issue was addressed with improved data protection. This issue is fixed in iOS 18 and iPadOS 18. An app may be able to leak sensitive user information.

Vulnerability class: Information Disclosure

Published 2024-09-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (11.4th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

support.apple.com/en-us/121250 (Release Notes, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2024-40863?: CVE-2024-40863 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Information Disclosure. CVSS score: 5.5/10. Published 2024-09-17.
How severe is CVE-2024-40863?: Medium severity. CVSS v3 base score is 5.5 out of 10.