Is CVE-2025-14021 in the CISA KEV catalog?

No. CVE-2025-14021 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-14021?

CVE-2025-14021 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2025-14021?

CVE-2025-14021 has an EPSS score of 0.18% (7th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-14021?

Upgrade line to 14.14.0 or later.

CVE & CISA-KEV Catalog

CVE-2025-14021

MEDIUM

4.3

CVSS v3

NVD

Description

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.

CWE-451

How to fix

Remediation Available

lineNVD

Affected:< 14.14.0Fixed in:14.14.0CVE-2025-14021derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Exploit Intelligence

0.18%probability of exploitation in 30 days

7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Third-Party Advisory1

hackerone.com

Related Vulnerabilities

Other CWE-451 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-38112	High	7.5	84%	KEV	Fix
CVE-2025-9491	High	7.8	63%	-	-
CVE-2024-43461	High	8.8	52%	KEV	Fix
CVE-2024-38197	Medium	6.5	16%	-	-
CVE-2026-21527	High	6.5	9.5%	-	Fix
CVE-2024-49040	High	7.5	7.7%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-18.