CVE-2012-4207
4.3 · MEDIUMOverview
CVE-2012-4207 is a medium-severity vulnerability affecting mozilla firefox. It was published on November 21, 2012 and has a CVSS 2.0 base score of 4.3 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The HZ-GB-2312 character-set implementation in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 does not properly handle a ~ (tilde) character in proximity to a chunk delimiter, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted document.
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, < 17.0 | Affected |
| mozilla | seamonkey | >= 0, < 2.14 | Affected |
| mozilla | thunderbird | >= 0, < 17.0 | Affected |
| mozilla | thunderbird_esr | >= 10.0, < 10.0.11 | Affected |
References
Frequently Asked Questions
What is CVE-2012-4207?
CVE-2012-4207 is a medium-severity vulnerability affecting mozilla firefox. It was published on November 21, 2012 and has a CVSS 2.0 base score of 4.3 (MEDIUM).
How severe is CVE-2012-4207?
This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2012-4207?
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-2012-4207?
CyberStrike's AI-powered security agents can automatically detect CVE-2012-4207 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.
How CyberStrike Helps
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