CVE-2018-18913: Opera Browser

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Opera before 57.0.3098.106 is vulnerable to a DLL Search Order hijacking attack where an attacker can send a ZIP archive composed of an HTML page along with a malicious DLL to the target. Once the document is opened, it may allow the attacker to take full control of the system from any location within the system. The issue lies in the loading of the shcore.dll and dcomp.dll files: these files are being searched for by the program in the same system-wide directory where the HTML file is executed.

Affected products

• Opera Opera Browser: before 57.0.3098.106 (fixed in 57.0.3098.106)

Published 2019-03-21. Last modified 2026-06-17.