AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2018-5163

HIGH · CVSS 8.1 EPSS 2.11%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-06-11 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. It affects Firefox, Java.

CVE
CVE-2018-5163
Severity
HIGH
CVSS
8.1
EPSS
2.11%
Firefox Java

Original NVD Description

If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.

Related CVEs

Other vulnerabilities affecting the same vendor(s)