CVE-2013-1690: Mozilla Firefox and Thunderbird Denial-of-Service Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2022-03-28. EPSS: 69% chance of exploitation in the next 30 days.

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.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 12.10 only; version 13.04 only
• Debian Debian Linux: version 7.0 only
• Mozilla Firefox: before 22.0 (fixed in 22.0); from 17.0, before 17.0.7 (fixed in 17.0.7)
• Mozilla Thunderbird: before 17.0.7 (fixed in 17.0.7)
• Mozilla Thunderbird ESR: from 17.0, before 17.0.7 (fixed in 17.0.7)
• Opensuse Opensuse: version 11.4 only; version 12.2 only; version 12.3 only
• Red Hat Enterprise Linux Desktop: version 5.0 only; version 6.0 only
• Red Hat Enterprise Linux Eus: version 5.9 only; version 6.4 only
• Red Hat Enterprise Linux Server: version 5.0 only; version 6.0 only
• Red Hat Enterprise Linux Server Aus: version 5.9 only; version 6.4 only
• Red Hat Enterprise Linux Workstation: version 5.0 only; version 6.0 only
• Red Hat Gluster Storage Server For On-Premise: version 2.0 only
• Suse Linux Enterprise Desktop: version 10 only; version 11 only
• Suse Linux Enterprise Server: version 10 only; version 11 only
• Suse Linux Enterprise Software Development Kit: version 10 only; version 11 only

Published 2013-06-26. Last modified 2026-06-16.