SEPTEMBER 17, 2026
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Case File

CVE-2026-84139

MEDIUM · CVSS 6.1 EPSS 0.18%

Source: NVD + CISA KEV + EPSS · Published 2026-09-01 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

A clickjacking vulnerability exists in the DOM: Events component of Firefox, potentially allowing attackers to manipulate user interactions without their consent. This issue affects users of Firefox versions prior to 155 and Firefox ESR versions prior to 153.2, and organizations using these versions should prioritize updates to mitigate the risk of exploitation.

CVE
CVE-2026-84139
Severity
MEDIUM
CVSS
6.1
EPSS
0.18%
Firefox

Original NVD Description

Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-84642 HIGH CVE-2026-84641 HIGH CVE-2026-84640 HIGH CVE-2026-84639 CRITICAL CVE-2026-84637 CRITICAL CVE-2026-84145 HIGH