Skip to main content
VulnerabilityPublished Updated

CVE-2025-14022: LINE client for iOS · Na

Affects LINE client for iOSSource CVE Database V5

0

Not known to be exploited · CVSS 7.7 High · fixed in 15.4 : patch LINE client for iOS soon.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
7.7High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 15.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
SwiftURLlinecorp/line-client-iospkg:swift/linecorp/line-client-iosOther threatsAffected
  • =15.3
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

  1. Immediate update: Organizations and users should upgrade the LINE client for iOS to version 15.4 or later as soon as the patch is available to restore proper SSL/TLS certificate validation.
  2. Network monitoring: Deploy network intrusion detection systems (NIDS) capable of detecting anomalous SSL/TLS traffic patterns or MitM attempts, especially on corporate Wi-Fi and VPNs.
  3. Enforce use of trusted networks: Encourage or enforce the use of trusted, encrypted networks and VPNs for accessing LINE, reducing exposure to network-adjacent attackers.
  4. Application whitelisting and sandboxing: Limit the ability of unauthorized SDKs or apps to interfere with network traffic on iOS devices through mobile device management (MDM) policies.
  5. User awareness: Educate users about the risks of using public or unsecured Wi-Fi networks and the importance of updating applications promptly.
  6. Incident response readiness: Prepare to investigate potential data breaches or suspicious activity related to LINE communications, including logs and network captures.
  7. Vendor engagement: Maintain communication with LINE Corporation for timely updates and security advisories related to this vulnerability.

Description

LINE client for iOS prior to 15.4 allows man-in-the-middle attacks due to improper SSL/TLS certificate validation in an integrated financial SDK. The SDK interfered with the application's network processing, causing server certificate verification to be disabled for a significant portion of network traffic, which could allow a network-adjacent attacker to intercept or modify encrypted communications.

References

Community reviews

Loading reviews…