The in-app browser in LINE client for iOS versions prior to 14.14 is vulnerable to…
Priority LOW 19CWE-451Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-451.
Summary
The in-app browser in LINE client for iOS versions prior to 14.14 is vulnerable to address bar spoofing, which could allow attackers to execute malicious JavaScript within iframes while displaying trusted URLs, enabling phishing attacks through overlaid malicious content.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00212 11th percentileScored 2026-11-07
Fix Fixed LINE client for iOS (LINE Corporation): 14.14
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| LINE Corporation | LINE client for iOS | 14.13 to before 14.14 | 14.14 | Patch available | CNA |
- LINE client for iOS VendorLINE Corporation Affected 14.13 to before 14.14 Fixed in 14.14 Patch available CNA
Remediation
- Fix · CNA LINE client for iOS (LINE Corporation) Fixed in 14.14
Timeline
- 2026-10-02 Threatist record created from CVE-2025-14021
- 2026-10-03 Alias added: GHSA-h66v-gcx5-5fhw
References
Advisory 1
More LINE Corporation vulnerabilities
- TI-2024-01613 Improper authentication in LINE Corporation Armeria CVSS 3.1CRITICAL 9.1
- TI-2023-05112 Improper certificate validation in LINE client for iOS CVSS 3.1CRITICAL 9.8
- TI-2024-01060 Cross-site scripting in LINE Corporation Central Dogma CVSS 3.1CRITICAL 9.3
- TI-2023-19873 Paths contain matrix variables bypass decorators CVSS 3.1HIGH 7.5
- TI-2022-19973 LINE client for iOS before 12.17.0 might be crashed by sharing an invalid shared key of e2ee in group chat. CVSS 3.1HIGH 7.5
- TI-2021-15992 Missing authorization in LINE Corporation Central Dogma CVSS 3.1HIGH 8.8
Sources
- CVE-2025-14021 · CVE Program
- CVE-2025-14021 · NVD
- FIRST EPSS
- GHSA-h66v-gcx5-5fhw · 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