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Case File

CVE-2020-12406

HIGH · CVSS 8.8 EPSS 1.02% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-07-09 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-12406
Severity
HIGH
CVSS
8.8
EPSS
1.02%
Firefox

Original NVD Description

Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.