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CVE-2018-4203
An out-of-bounds read was addressed with improved bounds checking. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS…
High7.5EPSS 1.5%
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
An out-of-bounds read was addressed with improved bounds checking. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.5% · top 25% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- An application may be able to read restricted memory
- CWE-125 (opens in a new tab)All about CWE-125 and its CVEs
Affected products
iOS, macOS, tvOS, watchOS
- affected Versions prior to: iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5
References (5)
- https://support.apple.com/kb/HT209107 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/kb/HT209193 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/kb/HT209106 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/kb/HT209139 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/kb/HT209108 (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://trackcve.app/cve/CVE-2018-4203)Record last updated .