CVE-2026-84141
Received Received - Intake

Integer Overflow in Firefox Graphics ImageLib

Publication date: 2026-09-01

Last updated on: 2026-09-01

Assigner: Mozilla Corporation

Description
Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.

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Meta Information

Published
2026-09-01
Last Modified
2026-09-01
Generated
2026-09-01
AI Q&A
2026-09-01
EPSS Evaluated
N/A
NVD
CVE-2026-84141
EUVD
EUVD-2026-69089

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
mozilla firefox to 155 (inc)
mozilla firefox_esr to 153.2 (inc)
mozilla firefox 155
mozilla firefox_esr 153.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is an integer overflow in the Graphics: ImageLib component of Firefox. An integer overflow occurs when a calculation produces a result larger than the maximum value that can be stored in the data type, potentially leading to unexpected behavior or crashes.

Detection Guidance

This vulnerability is fixed in Firefox 155 and Firefox ESR 153.2. To detect it, check your installed Firefox version using commands like 'firefox --version' or 'apt show firefox' (Linux) or 'brew info firefox' (macOS). If the version is below 155 or ESR 153.2, the system is vulnerable.

Impact Analysis

An attacker could exploit this vulnerability to cause a crash or execute arbitrary code on your system by triggering the integer overflow through specially crafted images. This could lead to denial of service or potential compromise of your device.

Compliance Impact

The provided CVE data does not specify how this vulnerability impacts compliance with standards like GDPR or HIPAA. The description only mentions an integer overflow in the Graphics: ImageLib component fixed in Firefox 155 and Firefox ESR 153.2.

Mitigation Strategies

Update Firefox to version 155 or later and Firefox ESR to version 153.2 or later to address the integer overflow in the Graphics: ImageLib component.

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