CVSS 3.1 Score 6.5 of 10 (medium)


Published Nov 21, 2023
Updated: Nov 30, 2023


CVE-2023-6209 is a vulnerability that affects Firefox versions below 120, Firefox ESR versions below 115.5.0, and Thunderbird versions below 115.5. This vulnerability allows for path traversal attacks by exploiting the incorrect parsing of relative URLs starting with three slashes. By using a "/../" part in the path, an attacker can override the specified host and potentially gain unauthorized access to restricted directories. The vulnerability has a base severity of MEDIUM with a base score of 6.5, and it requires user interaction for exploitation. The impact score is 3.6, indicating high confidentiality impact. Remediation can be achieved by updating affected products to the latest versions that include the necessary security patches.

Explore Beyond the CVE Basics with Recorded Future's Vulnerability Intelligence

Note: This is just a basic overview providing quick insights into CVE-2023-6209 information. Gain full access to comprehensive CVE data, risk scores, prioritization, and mitigation data through Recorded Future's Vulnerability Intelligence:
  • Prioritize with Risk-Based Scoring
  • Explore the Extensive Vulnerability Database
  • Receive Early Alerts on Emerging CVEs
  • Focus on Critical Exploitable Vulnerabilities
  • Streamline Remediation with Integration Options