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Case File

CVE-2014-8639

MEDIUM · CVSS 6.8 EPSS 1.90%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2015-01-14 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.8. It affects Firefox. It may be remotely exploitable.

CVE
CVE-2014-8639
Severity
MEDIUM
CVSS
6.8
EPSS
1.90%
Firefox

Original NVD Description

Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, Thunderbird before 31.4, and SeaMonkey before 2.32 do not properly interpret Set-Cookie headers within responses that have a 407 (aka Proxy Authentication Required) status code, which allows remote HTTP proxy servers to conduct session fixation attacks by providing a cookie name that corresponds to the session cookie of the origin server.