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Case File

CVE-2019-9819

CRITICAL · CVSS 9.8 EPSS 1.69% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-07-23 · 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-2019-9819
Severity
CRITICAL
CVSS
9.8
EPSS
1.69%
Firefox Java

Original NVD Description

A vulnerability where a JavaScript compartment mismatch can occur while working with the fetch API, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.