CVE-2026-92014
Received Received - Intake

Privilege Escalation in Firefox ESR

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Mozilla Corporation

Description
Privilege escalation due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox ESR 115.41 and Firefox ESR 140.16.

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Meta Information

Published
2026-09-15
Last Modified
2026-09-15
Generated
2026-09-15
AI Q&A
2026-09-15
EPSS Evaluated
N/A
NVD
CVE-2026-92014
EUVD
EUVD-2026-78477

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox_esr 115.41
mozilla firefox_esr 140.16

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

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Executive Summary

This is a privilege escalation vulnerability caused by incorrect boundary conditions in Firefox's Graphics component. It allows attackers to gain elevated privileges through specially crafted inputs. The issue was patched in Firefox ESR versions 115.41 and 140.16.

Impact Analysis

An attacker could exploit this to gain unauthorized access to sensitive data or system functions. Users running unpatched Firefox ESR versions are at risk of privilege escalation attacks leading to potential data breaches or system compromise.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA requirements for data protection and access controls. Organizations using unpatched Firefox ESR may face compliance violations and penalties.

Mitigation Strategies

Update Firefox ESR to version 115.41 or 140.16 or later to address the privilege escalation vulnerability in the Graphics component.

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