CVE-2023-40428: Apple iOS and iPadOS · An app may be able to access sensitive user data
Affects Apple iOS and iPadOSSource CVE Database V5
Not known to be exploited : upgrade to 17 soon.
Data as of 26 Oct 2026, 17:16 UTC
Rated High by the CNA (apple) · No CVSS score from NVD or the CNA
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 17
Exploitation evidence
Disclosed: evidence found.
CVE published 26 Sep 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Apple iOS and iPadOS to 17.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apple iOS and iPadOS | Affected
| Fixed in
|
AI-suggested
Apple has released official fixes in iOS 17 and iPadOS 17 that address this vulnerability by improving cache handling. Users and administrators should update affected devices to these versions or later to remediate the issue.
Description
CVE-2023-40428 is a vulnerability in Apple iOS and iPadOS where an app may be able to access sensitive user data due to improper cache handling. The issue has been addressed and fixed in iOS 17 and iPadOS 17.