CVSS 3.1 Score 6.5 of 10 (medium)


Published Sep 27, 2023
Updated: Oct 12, 2023
CWE ID 416


CVE-2023-5171 is a vulnerability that affects Firefox versions prior to 118, Firefox ESR versions prior to 115.3, and Thunderbird versions prior to 115.3 during Ion compilation. It can result in a use-after-free condition, allowing an attacker to write two NUL bytes and potentially causing a crash that can be exploited. The vulnerability has a base severity rating of MEDIUM, with an exploitability score of 2.8. It requires user interaction and is network-based, but does not impact integrity or confidentiality. The availability impact is rated as HIGH.

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

Note: This is just a basic overview providing quick insights into CVE-2023-5171 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