CVE-2010-1728: Opera Browser

High severity, CVSS 9.3. EPSS: 7% chance of exploitation in the next 30 days.

Opera before 10.53 on Windows and Mac OS X does not properly handle a series of document modifications that occur asynchronously, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via JavaScript that writes <marquee> sequences in an infinite loop, leading to attempted use of uninitialized memory. NOTE: this might overlap CVE-2006-6955.

Affected products

• Opera Opera Browser: up to and including 10.52; version 5.0 only; version 5.02 only; version 5.10 only; version 5.11 only; version 5.12 only; …

Published 2010-05-06. Last modified 2026-06-16.