CVE-2012-3989
9.3 · HIGHOverview
CVE-2012-3989 is a high-severity vulnerability affecting mozilla firefox. It was published on October 10, 2012 and has a CVSS 2.0 base score of 9.3 (HIGH).
This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Mozilla Firefox before 16.0, Thunderbird before 16.0, and SeaMonkey before 2.13 do not properly perform a cast of an unspecified variable during use of the instanceof operator on a JavaScript object, which allows remote attackers to execute arbitrary code or cause a denial of service (assertion failure) via a crafted web site.
Remediation
Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| mozilla | firefox | >= 0, < 16.0 | Affected |
| mozilla | seamonkey | >= 0, < 2.13 | Affected |
| mozilla | thunderbird | >= 0, < 16.0 | Affected |
References
Frequently Asked Questions
What is CVE-2012-3989?
CVE-2012-3989 is a high-severity vulnerability affecting mozilla firefox. It was published on October 10, 2012 and has a CVSS 2.0 base score of 9.3 (HIGH).
How severe is CVE-2012-3989?
This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2012-3989?
Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2012-3989?
CyberStrike's AI-powered security agents can automatically detect CVE-2012-3989 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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