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Vulnerabilities

Vulnerability · CVE-2025-69234

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

Published Dec 30, 2025 · catalog updated Dec 31, 2025 · NAVER NAVER Whale browser

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2025-69234 is not in CISA KEV. FIRST estimates a 29.00% chance of exploitation in the next 30 days. Check whether you run NAVER NAVER Whale browser.

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
Critical9.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
29.00%
Remediation
Vendor / distro source
Affected products
vendor NAVER NAVER Whale browser patch: 4.35.351.12

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

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 NAVER NAVER Whale browser patch: 4.35.351.12patch: 4.35.351.12

How to fix CVE-2025-69234

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    Seen in patch: 4.35.351.12

  • Official advisories

What to do

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

Should you patch?

CVE-2025-69234 is not in CISA KEV. FIRST estimates a 29.00% chance of exploitation in the next 30 days. Check whether you run NAVER NAVER Whale browser.

Which versions are affected?

Compare what you have installed with NAVER NAVER Whale browser patch: 4.35.351.12 patch: 4.35.351.12. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 29.00%. 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 30, 2025 · EUVD

    Detected

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

  2. Dec 31, 2025 · EUVD

    Updated

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

Sources

  • EUVDVulnerability recordEUVD-2025-205677

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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Dec 31, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • EUVDNov 1, 2026