AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2017-5391

CRITICAL · CVSS 9.8 EPSS 1.79%

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

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Firefox.

CVE
CVE-2017-5391
Severity
CRITICAL
CVSS
9.8
EPSS
1.79%
Firefox

Original NVD Description

Special "about:" pages used by web content, such as RSS feeds, can load privileged "about:" pages in an iframe. If a content-injection bug were found in one of those pages this could allow for potential privilege escalation. This vulnerability affects Firefox < 51.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-16412 CRITICAL CVE-2026-16411 CRITICAL CVE-2026-16410 CRITICAL CVE-2026-16409 HIGH CVE-2026-16408 CRITICAL CVE-2026-16407 CRITICAL