CVE-2020-12390
CRITICALFirefox <76 - SSRF
Title source: llmDescription
Incorrect origin serialization of URLs with IPv6 addresses could lead to incorrect security checks. This vulnerability affects Firefox < 76.
Scores
CVSS v3
9.8
EPSS
0.0147
EPSS Percentile
80.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Classification
CWE
CWE-502
Status
published
Affected Products (1)
mozilla/firefox
< 76.0
Timeline
Published
May 26, 2020
Tracked Since
Feb 18, 2026