SEPTEMBER 23, 2026
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Case File

CVE-2026-6755

MEDIUM · CVSS 6.5 EPSS 0.19%

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

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. It affects Firefox.

CVE
CVE-2026-6755
Severity
MEDIUM
CVSS
6.5
EPSS
0.19%
Firefox

Original NVD Description

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Related CVEs

Other vulnerabilities affecting the same vendor(s)