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TI-2023-05112 Aliases CVE-2023-5554GHSA-9q93-64jr-x633

Improper certificate validation in LINE client for iOS

Priority MEDIUM 42CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-295.

Summary

Lack of TLS certificate verification in log transmission of a financial module within LINE client for iOS prior to 13.16.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00256 17th percentileScored 2026-11-07
Fix Fixed LINE client for iOS (LINE Corporation): 13.16.0

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

VendorProductAffected versionsFixed inStatusSource
LINE CorporationLINE client for iOS13.12.0 to before 13.16.013.16.0Patch availableCNA
  • LINE client for iOS VendorLINE Corporation Affected 13.12.0 to before 13.16.0 Fixed in 13.16.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:linecorp:line:*:*:*:*:*:iphone_os:*:*before 13.16.0VulnerableLinecorp
  • cpe:2.3:a:linecorp:line:*:*:*:*:*:iphone_os:*:* Versions before 13.16.0 Vulnerable ·Linecorp

Remediation

  • Fix · CNA LINE client for iOS (LINE Corporation) Fixed in 13.16.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-5554
  2. 2026-10-03 Alias added: GHSA-9q93-64jr-x633

References

Other 1

  • TI-2024-01613 Improper authentication in LINE Corporation Armeria CVSS 3.1CRITICAL 9.1
  • 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
  • TI-2019-04299 Integer overflow in LINE CVSS 3.1HIGH 7.8
See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences