CVE-2013-1690
Mozilla Firefox and Thunderbird Denial-of-Service Vulnerability
What is affected
| Vendor | Mozilla |
|---|---|
| Product | Firefox and Thunderbird |
| Weakness | CWE-119 |
The vulnerability
Mozilla Firefox and Thunderbird do not properly handle onreadystatechange events in conjunction with page reloading, which allows remote attackers to cause a denial-of-service (DoS) or possibly execute malicious code via a crafted web site.
Required action
Apply updates per vendor instructions.
US federal civilian agencies were required to act by 18 April 2022 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.
Where this comes from
Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 13 Nov 2026, 00:30. Nothing here is our own assessment. For the technical scoring, see the NVD record below.
More from Mozilla
Mozilla Multiple Products
Mozilla Multiple Products Remote Code Execution Vulnerability
CVE-2024-9680Mozilla Firefox
Mozilla Firefox Use-After-Free Vulnerability
CVE-2016-9079Mozilla Firefox, Firefox ESR, and Thunderbird
Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability
CVE-2015-4495Mozilla Firefox
Mozilla Firefox Security Feature Bypass Vulnerability