AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2018-12387

CRITICAL · CVSS 9.1 EPSS 9.59% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-10-18 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. It affects Firefox, Java. 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.

Detected Signals
exploit

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

CVE
CVE-2018-12387
Severity
CRITICAL
CVSS
9.1
EPSS
9.59%
Firefox Java

Original NVD Description

A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.

Related CVEs

Other vulnerabilities affecting the same vendor(s)