CVE-2026-2759
Modified Modified - Updated After Analysis

Boundary Error in Firefox ImageLib Causes Potential Memory Corruption

Publication date: 2026-02-24

Last updated on: 2026-06-30

Assigner: Mozilla Corporation

Description
Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

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Meta Information

Published
2026-02-24
Last Modified
2026-06-30
Generated
2026-07-06
AI Q&A
2026-02-24
EPSS Evaluated
2026-07-05
NVD
CVE-2026-2759

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
mozilla firefox to 148.0 (exc)
mozilla thunderbird to 148.0 (exc)
mozilla firefox to 115.33.0 (exc)
mozilla firefox From 128.0 (inc) to 140.8.0 (exc)
mozilla thunderbird to 140.8.0 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-1384 The product does not properly handle unexpected physical or environmental conditions that occur naturally or are artificially induced.

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Executive Summary

This vulnerability involves incorrect boundary conditions in the Graphics: ImageLib component of Firefox. It affects versions of Firefox earlier than 148, Firefox ESR versions earlier than 115.33, and Firefox ESR versions earlier than 140.8.

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