CVE Daily

CVE-2009-3376

Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, ...

Critical CVSS 9.3

Overview

Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename, which allows remote attackers to spoof file extensions via a crafted filename, as demonstrated by displaying a non-executable extension for an executable file.

CWE: CWE-16 Published: 2009-10-29T14:30:00.983
Risk analysis

This vulnerability is rated 🔴 CRITICAL.

  • CVSS: 9.3 (CRITICAL)
  • Detected tags: none (tag impact: LOW)

Recommended actions:

  • Prioritize remediation based on business criticality and exposure.
  • Limit exposure and increase monitoring until fixed.

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