Dashboard / CVE-2026-7321

CVE-2026-7321

CRITICAL
INFO Priority: 0.02 BB Relevance: 69/100
Published: 2026-04-28 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

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

Description

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
mozilla firefox < 140.10.1
mozilla firefox < 150.0
mozilla thunderbird < 140.10.1
mozilla thunderbird < 150.0

References & Advisories (5)

Bug Bounty Relevance

69 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

9.6 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS — Exploitation Probability

0.26%
Raw Score 0.002580
Percentile 17.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00258
2026-10-28
0.00258

Intelligence Sources

nvd ref →

External Links