CVE-2026-8966
Analyzed Analyzed - Analysis Complete
Information Disclosure in Firefox IP Protection

Publication date: 2026-05-19

Last updated on: 2026-05-20

Assigner: Mozilla Corporation

Description
Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-19
Last Modified
2026-05-20
Generated
2026-06-10
AI Q&A
2026-05-19
EPSS Evaluated
2026-06-08
NVD
CVE-2026-8966
EUVD
EUVD-2026-30918
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox to 151.0.0 (exc)
mozilla thunderbird to 151.0.0 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is an information disclosure issue in the IP Protection component of Mozilla Firefox. It means that sensitive information could be exposed unintentionally due to a flaw in this component. The issue was addressed and fixed in Firefox version 151.

Impact Analysis

The impact of this vulnerability is the potential exposure of sensitive information through the IP Protection component. This could lead to unauthorized parties gaining access to information that should be protected, possibly compromising user privacy or security.

Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 151 or later where the issue has been fixed.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-8966. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart