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CVE-2018-4277
In iOS before 11.4.1, watchOS before 4.3.2, tvOS before 11.4.1, Safari before 11.1.1, macOS High Sierra before 10.13.6, a spoofing issue…
High7.5EPSS 1.9%
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
In iOS before 11.4.1, watchOS before 4.3.2, tvOS before 11.4.1, Safari before 11.1.1, macOS High Sierra before 10.13.6, a spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation.
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:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 1.9% · top 21% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (6)
- https://support.apple.com/HT208854 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/HT208935 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/HT208937 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1041232 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://support.apple.com/HT208936 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/HT208938 (opens in a new tab)x_refsource_CONFIRMx_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-2018-4277)Record last updated .