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Vulnerability record · CVE-2018-9859 · published 16 June 2018

CVE-2018-9859: Navercorp whale vulnerability

Navercorp · Whale

The path of Whale update service was unquoted in NAVER Whale before 1.0.40.7. This vulnerability can be used for persistent privilege escalation if it's available to create an executable file with System privilege by other vulnerable applications.

8.1 CVSS 3.0 High EPSS 0.92% · top 41.2%
8.1CVSS 3.0 base score, v2 5.1
0.92%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

The path of Whale update service was unquoted in NAVER Whale before 1.0.40.7. This vulnerability can be used for persistent privilege escalation if it's available to create an executable file with System privilege by other vulnerable applications.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cve.naver.com/detail/cve-2018-9859.html Vendor Advisory
https://cve.naver.com/detail/cve-2018-9859.html Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-62583Navercorp whale vulnerabilityWhale Browser before 4.33.325.17 allows an attacker to escape the iframe sandbox in a dual-tab environment.EPSS 0.50%9.8CVE-2025-53599Navercorp whale cross-site scripting vulnerabilityWhale browser for iOS before 3.9.1.4206 allow an attacker to execute malicious scripts in the browser via a crafted javascript scheme.EPSS 0.41%9.8CVE-2022-24074Navercorp whale exposure of resource to wrong sphere vulnerabilityWhale Bridge, a default extension in Whale browser before 3.12.129.18, allowed to receive any SendMessage request from the content script itself that…EPSS 1.1%9.1CVE-2025-69234Navercorp whale vulnerabilityWhale browser before 4.35.351.12 allows an attacker to escape the iframe sandbox in a sidebar environment.EPSS 0.29%7.8CVE-2018-12449Navercorp whale untrusted search path vulnerabilityThe Whale browser installer 0.4.3.0 and earlier versions allows DLL hijacking.EPSS 0.90%7.8CVE-2017-15913Navercorp whale untrusted search path vulnerabilityThe Installer in Whale allows DLL hijacking.EPSS 1.0%7.5CVE-2025-69235Navercorp whale origin validation error vulnerabilityWhale browser before 4.35.351.12 allows an attacker to bypass the Same-Origin Policy in a sidebar environment.EPSS 0.16%7.5CVE-2025-62584Navercorp whale origin validation error vulnerabilityWhale browser before 4.33.325.17 allows an attacker to bypass the Same-Origin Policy in a dual-tab environment.EPSS 0.21%

Source: NIST National Vulnerability Database (record CVE-2018-9859), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.