{"id":"CVE-2018-18913","published":"2019-03-21T21:06:16Z","modified":"2024-08-05T11:23:08Z","title":"Opera before 57.0.3098.106 is vulnerable to a DLL Search Order hijacking attack where an attacker can send a ZIP…","vendor":null,"product":null,"tier":"core","eol":null,"description":{"text":"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.","provenance":"source","from":"CVE.org"},"summary":null,"cvss":null,"epss":{"score":0.00402,"percentile":0.34422,"date":"2026-10-31","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":null,"cwes":[],"references":[{"url":"https://lucideustech.blogspot.com/2019/02/opera-search-order-hijacking-cve-2018-18913.html","tags":["x_refsource_MISC"]},{"url":"https://blogs.opera.com/desktop/changelog-for-57/","tags":["x_refsource_CONFIRM"]}],"techniques":[],"reports":[{"id":"SRC-88d066192f85d1f801db","title":"Analyzing Attacker Behavior Post-Exploitation of MS Exchange","publisher":"rapid7.com","url":"https://www.rapid7.com/blog/post/2021/03/23/defending-against-the-zero-day-analyzing-attacker-behavior-post-exploitation-of-microsoft-exchange/","date":null,"mentions":[{"quote":"These scripts would then execute encoded PowerShell commands that would retrieve a legitimate version of the Opera Browser that has a known DLL search order vulnerability (CVE-2018-18913).","start":17245,"end":17433}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2018-10623","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-10623","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2019-03-21","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2018-18913","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":10.8,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":6.88,"detail":"percentile 0.3442"},{"name":"Named in threat reports","points":3.87,"detail":"1 report"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":0.0,"detail":"no CVSS"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}