CVE-2026-0886
Unknown Unknown - Not Provided
Boundary Condition Error in Firefox Graphics Component Causes Crash

Publication date: 2026-01-13

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
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Meta Information
Published
2026-01-13
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2026-01-14
EPSS Evaluated
2026-06-14
NVD
CVE-2026-0886
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
mozilla firefox to 147 (exc)
mozilla firefox_esr to 115.32 (exc)
mozilla firefox_esr to 140.7 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-501 The product mixes trusted and untrusted data in the same data structure or structured message.
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Mitigation Strategies

To mitigate this vulnerability, you should update Firefox to version 147 or later, or Firefox ESR to version 115.32 or later, or ESR 140.7 or later. These versions include fixes addressing the vulnerability in the Graphics component. [1, 2, 3]

Impact Analysis

The vulnerability has a CVSS base score of 5.3, indicating a moderate impact. It can lead to a loss of confidentiality but does not affect integrity or availability. It can be exploited remotely without user interaction or privileges.

Executive Summary

This vulnerability is caused by incorrect boundary conditions in the Graphics component of Firefox. It affects versions of Firefox earlier than 147, Firefox ESR earlier than 115.32, and Firefox ESR earlier than 140.7.

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