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Vulnerabilities

Threat intelligence · CVE-2025-14021

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

Published Dec 15, 2025 · catalog updated Dec 15, 2025 · LINE Corporation LINE client for iOS

Last checked Oct 27, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-14021. EPSS is 0.21%. Act only if a listed version of LINE Corporation LINE client for iOS is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium4.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.21%
Remediation
Version ranges on file
Affected products
vendor LINE Corporation LINE client for iOS 14.13 <14.14

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor LINE Corporation LINE client for iOS 14.13 <14.1414.13 <14.14

How to fix CVE-2025-14021

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-14021. EPSS is 0.21%. Act only if a listed version of LINE Corporation LINE client for iOS is installed.

Which versions are affected?

Compare what you have installed with LINE Corporation LINE client for iOS 14.13 <14.14 14.13 <14.14. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 15, 2025 · EUVD

    Detected

    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.

  2. Dec 15, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-14021

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-14021

    30-day exploitation probability 0.21%

    first.org
  • EUVDVulnerability recordEUVD-2025-203345

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 27, 2026
  • FIRST EPSSOct 27, 2026
  • EUVDOct 27, 2026