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CVE-2018-4282
An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This…
Medium5.5EPSS 0.35%
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2.
Timeline
ID reserved
By apple
- 15 months later
· 15 months later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.35% · top 71% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
- A local user may be able to read kernel memory
- CWE-125 (opens in a new tab)All about CWE-125 and its CVEs
Affected products
iOS, tvOS, watchOS
- affected Versions prior to: iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2
References (3)
- https://support.apple.com/kb/HT208938 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/kb/HT208935 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/kb/HT208936 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-4282)Record last updated .