AUGUST 4, 2026
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Case File

CVE-2020-12390

CRITICAL · CVSS 9.8 EPSS 1.58%

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

CyberRota Analysis

AI analysis pending.

CVE
CVE-2020-12390
Severity
CRITICAL
CVSS
9.8
EPSS
1.58%
Firefox

Original NVD Description

Incorrect origin serialization of URLs with IPv6 addresses could lead to incorrect security checks. This vulnerability affects Firefox < 76.