CVE-2026-7320

Modified Modified - Updated After Analysis

Information Disclosure in Firefox Audio/Video Component

Publication date: 2026-04-28

Last updated on: 2026-06-30

Assigner: Mozilla Corporation

Description

Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-04-28

Last Modified

2026-06-30

Generated

2026-07-06

AI Q&A

2026-04-28

EPSS Evaluated

2026-07-05

NVD

CVE-2026-7320

EUVD

EUVD-2026-26057

Affected Vendors & Products

Vendor	Product	Version / Range
mozilla	firefox	to 150.0.1 (exc)
mozilla	firefox	to 115.35.1 (exc)
mozilla	thunderbird	to 150.0.1 (exc)
mozilla	thunderbird	to 140.10.1 (exc)
mozilla	firefox	From 128.0 (inc) to 140.10.1 (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.
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

CVE-2026-7320 is a high-impact information disclosure vulnerability caused by incorrect boundary conditions in the Audio/Video component of Firefox ESR.

This flaw could potentially allow unauthorized access to sensitive information due to improper handling of data boundaries within the multimedia processing modules.

Impact Analysis

This vulnerability can lead to unauthorized disclosure of sensitive information by exploiting incorrect boundary conditions in the Audio/Video component.

An attacker could potentially access data that should be protected, leading to privacy breaches or exposure of confidential multimedia content.

Mitigation Strategies

To mitigate this vulnerability, you should update your Firefox installations to the fixed versions.

Upgrade Firefox to version 150.0.1 or later.
Upgrade Firefox ESR to version 140.10.1 or later.
Upgrade Firefox ESR to version 115.35.1 or later.

Compliance Impact

This vulnerability involves information disclosure due to incorrect boundary conditions in the Audio/Video component of Firefox ESR, potentially allowing unauthorized access to sensitive information.

Such unauthorized disclosure of sensitive information could impact compliance with data protection regulations like GDPR and HIPAA, which require safeguarding personal and sensitive data against unauthorized access.

However, the provided information does not explicitly detail the specific effects on compliance with these standards.

Hi! I’m here to help you understand CVE-2026-7320. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70