Mozilla Firefox before 22.0, Firefox ESR 17.x before 17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before 17.0.7 do not properly handle onreadystatechange events in conjunction with page reloading, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted web site that triggers an attempt to execute data at an unmapped memory location.
Use CWE-119, Mozilla vendor hub and Firefox product page to widen CVE-2013-1690 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-6776, CVE-2026-6784 and CVE-2026-6782 for nearby disclosures in the same product family.