Cyber Resilience

CVE-2025-69234

Critical

Published: 30 December 2025

Published
30 December 2025
Modified
13 January 2026
KEV Added
—
Patch
—
CVSS Score v3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0025 16.2th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2025-69234 is a critical-severity Improperly Implemented Security Check for Standard (CWE-358) vulnerability in Navercorp Whale. Its CVSS base score is 9.1 (Critical).

Operationally, ranked at the 16.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Whale browser before 4.35.351.12 allows an attacker to escape the iframe sandbox in a sidebar environment.

CWE(s)
CWE-358

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

navercorp
whale
≤ 4.35.351.12

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-2 Control Assessments
addresses: CWE-358

Assessments identify and document improperly implemented security checks, allowing fixes that reduce exploitation of flawed checks.

References