Improper input validation in Apple WebKit
Priority LOW 34CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iCloud before 7.5 on Windows is affected. iTunes before 12.7.5 on Windows is affected. tvOS before 11.4 is affected. The issue involves the "WebKit" component. It allows remote attackers to spoof the address bar via a crafted web site.
Why it matters now
EPSS 0.02505 84th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apple:apple_tv:*:*:*:*:*:*:*:* | before 11.4 | Vulnerable | Apple |
| cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* | before 11.1.1 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 11.4 | Vulnerable | Apple |
| cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:* | before 7.5 | Vulnerable | Apple |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:* | before 12.7.5 | Vulnerable | Apple |
- cpe:2.3:a:apple:apple_tv:*:*:*:*:*:*:*:* Versions before 11.4 Vulnerable ·Apple
- cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 11.1.1 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 11.4 Vulnerable ·Apple
- cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:* Versions before 7.5 Vulnerable ·Apple
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:* Versions before 12.7.5 Vulnerable ·Apple
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-4188
- 2026-10-03 Alias added: GHSA-chv2-chf2-8cg5
References
More Apple Tv vulnerabilities
- TI-2018-03197 Memory corruption in Apple Kernel CVSS 3.0HIGH 7.8
- TI-2018-03047 Memory corruption in Apple WebKit CVSS 3.0HIGH 8.8
- TI-2017-01643 Memory corruption in Apple WebKit CVSS 3.0HIGH 8.8
- TI-2018-03248 In macOS High Sierra before 10.13.3, Security Update 2018-001 Sierra, and Security Update… CVSS 3.0CRITICAL 9.8
- TI-2018-03195 Memory corruption in Apple Kernel CVSS 3.0HIGH 7.8
- TI-2018-03144 In iOS before 11.2.5, macOS High Sierra before 10.13.3, Security Update 2018-001 Sierra… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2018-4188 · CVE Program
- CVE-2018-4188 · NVD
- FIRST EPSS
- GHSA-chv2-chf2-8cg5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences