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Case File

CVE-2020-12388

CRITICAL · CVSS 10 EPSS 2.71% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-05-26 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 10.0. It affects Windows, Firefox. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

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

External Security References

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

CVE
CVE-2020-12388
Severity
CRITICAL
CVSS
10
EPSS
2.71%
Windows Firefox

Original NVD Description

The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape. *Note: this issue only affects Firefox on Windows operating systems.*. This vulnerability affects Firefox ESR < 68.8 and Firefox < 76.

Related CVEs

Other vulnerabilities affecting the same vendor(s)