Dashboard / CVE-2026-16405

CVE-2026-16405

HIGH
MEDIUM Priority: 0.03 BB Relevance: 75/100
Published: 2026-07-21 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

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

Description

Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
mozilla firefox < 153.0.0
mozilla firefox 140.1.0 – 140.13.0

References & Advisories (5)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.44%
Raw Score 0.004390
Percentile 38.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00439
2026-10-28
0.00439

Intelligence Sources

nvd ref →

External Links