CVE-2010-4582: Opera before 11.00 does not properly handle security policies during updates to extensions, which might all...

Security readout for executives and security teams

This CVE concerns old Opera browser versions before 11.00. During extension updates, Opera could mishandle security policies, possibly letting a remote attacker bypass intended access restrictions. The public record does not provide CVSS, CWE, or attack details. Exposure is most likely limited to legacy systems still running Opera before 11.00, especially where browser extensions are installed or updated. Current enterprise exposure should be low unless obsolete browsers remain in software inventories. Treat as a legacy technology hygiene issue unless old Opera is still present. Prioritize confirmation through asset inventory, then remove or upgrade affected browsers during routine vulnerability remediation. Mitigation focus: Upgrade Opera installations to version 11.00 or later where still present.; Remove or retire obsolete Opera versions from managed systems.; If upgrade is not possible, restrict use of legacy Opera for web browsing..

Prepared

Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.