High 9.3Published Jul 8, 2010

CVE-2010-2666Opera before 10.54 on Windows and Mac OS X does not properly enforce permission requirements for widget filesystem access and directory selection, which allows user-assisted remote attackers to creat…

Updated under an hour ago (Nov 2, 2026, 12:23 AM ET)

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Opera before 10.54 on Windows and Mac OS X does not properly enforce permission requirements for widget filesystem access and directory selection, which allows user-assisted remote attackers to create or modify arbitrary files, and consequently execute arbitrary code, via widget File I/O operations.

CVSS: 9.3 HIGH (v2.0, NVD)AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-264
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

opera opera_browser opera:opera_browser	through 10.53; 5.0; 5.0; 5.0; 5.0; 5.0; 5.0; 5.0; and 150 more ranges	NVD

References

References

http://secunia.com/advisories/40250	vendor-advisory
http://www.opera.com/docs/changelogs/mac/1054/
http://www.opera.com/docs/changelogs/windows/1054/
http://www.opera.com/support/kb/view/962/	vendor-advisory
http://www.securityfocus.com/bid/40973
http://www.vupen.com/english/advisories/2010/1529	vendor-advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11950

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.