Vulnerabilities (CVE)

Filtered by vendor Opera Subscribe
Total 311 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2005-3007 1 Opera 1 Opera Browser 2026-04-16 2.6 LOW N/A
Opera before 8.50 allows remote attackers to spoof the content type of files via a filename with a trailing "." (dot), which might allow remote attackers to trick users into processing dangerous content.
CVE-2005-0457 1 Opera 1 Opera Browser 2026-04-16 7.2 HIGH N/A
Opera 7.54 and earlier on Gentoo Linux uses an insecure path for plugins, which could allow local users to gain privileges by inserting malicious libraries into the PORTAGE_TMPDIR (portage) temporary directory.
CVE-2004-1810 1 Opera 1 Opera Browser 2026-04-16 5.0 MEDIUM N/A
The Javascript engine in Opera 7.23 allows remote attackers to cause a denial of service (crash) by creating a new Array object with a large size value, then writing into that array.
CVE-2003-0870 1 Opera 1 Opera Browser 2026-04-16 7.5 HIGH N/A
Heap-based buffer overflow in Opera 7.11 and 7.20 allows remote attackers to execute arbitrary code via an HREF with a large number of escaped characters in the server name.
CVE-2005-0238 4 Gnome, Mozilla, Omnigroup and 1 more 5 Epiphany, Camino, Mozilla and 2 more 2026-04-16 5.0 MEDIUM N/A
The International Domain Name (IDN) support in Epiphany allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing attacks.
CVE-2005-4718 1 Opera 1 Opera Browser 2026-04-16 5.0 MEDIUM N/A
Opera 8.02 and earlier allows remote attackers to cause a denial of service (client crash) via (1) a crafted HTML file with a "content: url(0);" style attribute, a "bodyA" tag, a long string, and a "u" tag with a long attribute, as demonstrated by opera.html; and (2) a BGSOUND element with a "margin:-99;" STYLE attribute.
CVE-2006-3199 1 Opera 1 Opera Browser 2026-04-16 5.0 MEDIUM N/A
Opera 9 allows remote attackers to cause a denial of service (crash) via an A tag with an href attribute with a URL containing a long hostname, which triggers an out-of-bounds operation.
CVE-2004-2659 2 Mozilla, Opera 2 Mozilla, Opera Browser 2026-04-16 4.0 MEDIUM N/A
Opera offers an Open button to verify that a user wishes to execute a downloaded file, which allows user-assisted remote attackers to construct a race condition that tricks a user into clicking Open via a request for a different mouse or keyboard action very shortly before the Open dialog appears. NOTE: this is a different issue than CVE-2005-2407.
CVE-2003-1396 1 Opera 1 Opera Browser 2026-04-16 6.8 MEDIUM N/A
Heap-based buffer overflow in Opera 6.05 through 7.10 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a filename with a long extension.
CVE-2004-2083 1 Opera 1 Opera Browser 2026-04-16 2.6 LOW N/A
Opera Web Browser 7.0 through 7.23 allows remote attackers to trick users into executing a malicious file by embedding a CLSID in the file name, which causes the malicious file to appear as a trusted file type, aka "File Download Extension Spoofing."
CVE-2003-1397 1 Opera 1 Opera Browser 2026-04-16 4.3 MEDIUM N/A
The PluginContext object of Opera 6.05 and 7.0 allows remote attackers to cause a denial of service (crash) via an HTTP request containing a long string that gets passed to the ShowDocument method.
CVE-2006-3331 1 Opera 1 Opera Browser 2026-04-16 5.0 MEDIUM N/A
Opera before 9.0 does not reset the SSL security bar after displaying a download dialog from an SSL-enabled website, which allows remote attackers to spoof a trusted SSL certificate from an untrusted website and facilitates phishing attacks.
CVE-2005-2407 1 Opera 1 Opera Browser 2026-04-16 5.1 MEDIUM N/A
A design error in Opera 8.01 and earlier allows user-assisted attackers to execute arbitrary code by overlaying a malicious new window above a file download dialog box, then tricking the user into double-clicking on the "Run" button, aka "link hijacking".
CVE-2004-0717 3 Linux, Microsoft, Opera 3 Linux Kernel, Windows, Opera Browser 2026-04-16 7.5 HIGH N/A
Opera 7.51 for Windows and 7.50 for Linux does not properly prevent a frame in one domain from injecting content into a frame that belongs to another domain, which facilitates web site spoofing and other attacks, aka the frame injection vulnerability.
CVE-2005-0233 4 Mozilla, Omnigroup, Opera and 1 more 6 Camino, Firefox, Mozilla and 3 more 2026-04-16 7.5 HIGH N/A
The International Domain Name (IDN) support in Firefox 1.0, Camino .8.5, and Mozilla before 1.7.6 allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing attacks.
CVE-2004-1201 1 Opera 1 Opera Browser 2026-04-16 5.0 MEDIUM N/A
Opera 7.54 allows remote attackers to cause a denial of service (application crash from memory exhaustion), as demonstrated using Javascript code that continuously creates nested arrays and then sorts the newly created arrays.
CVE-2004-1491 4 Gentoo, Kde, Opera and 1 more 4 Linux, Kde, Opera Browser and 1 more 2026-04-16 5.0 MEDIUM N/A
Opera 7.54 and earlier uses kfmclient exec to handle unknown MIME types, which allows remote attackers to execute arbitrary code via a shortcut or launcher that contains an Exec entry.
CVE-2004-0537 1 Opera 1 Opera Browser 2026-04-16 5.0 MEDIUM N/A
Opera 7.50 and earlier allows remote web sites to provide a "Shortcut Icon" (favicon) that is wider than expected, which could allow the web sites to spoof a trusted domain and facilitate phishing attacks using a wide icon and extra spaces.
CVE-2005-2405 1 Opera 1 Opera Browser 2026-04-16 5.0 MEDIUM N/A
Opera 8.01, when the "Arial Unicode MS" font (ARIALUNI.TTF) is installed, does not properly handle extended ASCII characters in the file download dialog box, which allows remote attackers to spoof file extensions and possibly trick users into executing arbitrary code.
CVE-2005-1139 1 Opera 1 Opera Browser 2026-04-16 7.5 HIGH N/A
Opera 8 Beta 3, when using first-generation vetted digital certificates, displays the Organizational information of an SSL certificate, which is easily spoofed and can facilitate phishing attacks.