CVE-2026-6775

Received Received - Intake

Boundary Error in Firefox WebRTC Component Causes Potential Exploits

Publication date: 2026-04-21

Last updated on: 2026-04-22

Assigner: Mozilla Corporation

Description

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-04-21

Last Modified

2026-04-22

Generated

2026-07-06

AI Q&A

2026-04-21

EPSS Evaluated

2026-07-05

NVD

CVE-2026-6775

EUVD

EUVD-2026-24116

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 150.0 (exc)
mozilla	thunderbird	to 150.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-119	The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

Executive Summary

This vulnerability involves incorrect boundary conditions in the WebRTC component of Firefox. It means that the software did not properly handle certain limits or edges in data processing within WebRTC, which could potentially lead to unexpected behavior or security issues. The problem was fixed in Firefox version 150.

Impact Analysis

Incorrect boundary conditions in a WebRTC component could potentially allow attackers to exploit the software, possibly leading to crashes, data corruption, or unauthorized access. However, specific impacts are not detailed in the provided information.

Mitigation Strategies

The vulnerability was fixed in Firefox 150. To mitigate this vulnerability, you should update your Firefox browser to version 150 or later.

Hi! I’m here to help you understand CVE-2026-6775. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70