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Case File

CVE-2012-4207

MEDIUM · CVSS 4.3 EPSS 2.78%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2012-11-21 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2012-4207
Severity
MEDIUM
CVSS
4.3
EPSS
2.78%
Firefox

Original NVD Description

The HZ-GB-2312 character-set implementation in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 does not properly handle a ~ (tilde) character in proximity to a chunk delimiter, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted document.