Dashboard / CVE-2026-6771

CVE-2026-6771

CRITICAL
INFO Priority: 0.03 BB Relevance: 80/100
Published: 2026-04-21 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
mozilla firefox < 150.0
mozilla firefox 140.0 – 140.10.0
mozilla thunderbird 140.0 – 140.10.0

References & Advisories (5)

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.31%
Raw Score 0.003090
Percentile 23.7%
Date 2026-10-28

Intelligence Sources

nvd ref →

External Links