CVE-2010-3021: Unspecified vulnerability in Opera before 10.61 allows remote attackers to cause a denial of service (CPU c...

Security readout for executives and security teams

CVE-2010-3021 is an Opera browser denial-of-service issue fixed before version 10.61. A malicious animated PNG image could cause high CPU usage and hang the application. The business impact is user disruption, not documented data theft or code execution. Exposure is mainly legacy systems still running Opera versions earlier than 10.61 and processing untrusted web or image content. Modern environments are unlikely to be exposed unless old browser builds remain installed. Treat this as a legacy cleanup issue unless old Opera installations are still present. Prioritize confirmation through software inventory and remove or upgrade affected browsers to reduce preventable workstation disruption. Mitigation focus: Upgrade Opera installations to version 10.61 or later where applicable.; Remove unsupported Opera versions from managed endpoints.; Check Opera vendor changelogs for platform-specific fixed-version guidance..

Prepared

Jun 28, 2026, 02:01 UTC (UTC+00:00)

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