Vulnerability · Published Oct 16, 2025 · Assigned by naver
CVE-2025-62583
Critical 9.8
In plain English
A critical-severity security flaw in NAVER Whale browser from NAVER. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 56.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Whale Browser before 4.33.325.17 allows an attacker to escape the iframe sandbox in a dual-tab environment.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| NAVER | NAVER Whale browser | see references |
Weakness: CWE-358 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- NAVER Security Advisory vendor-advisory