CVE-2026-74964
Undergoing Analysis Undergoing Analysis - In Progress

Integer Overflow in Firefox Graphics Component

Publication date: 2026-08-18

Last updated on: 2026-08-18

Assigner: Mozilla Corporation

Description
Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1.

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Meta Information

Published
2026-08-18
Last Modified
2026-08-18
Generated
2026-08-18
AI Q&A
2026-08-18
EPSS Evaluated
N/A
NVD
CVE-2026-74964
EUVD
EUVD-2026-60662

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
mozilla firefox to 154 (inc)
mozilla firefox_esr to 140.14 (inc)
mozilla firefox_esr to 153.1 (inc)

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 is an integer overflow vulnerability in Firefox's Graphics component. 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 specific to Firefox versions before 154, Firefox ESR 140.14, and Firefox ESR 153.1. Detection involves checking installed Firefox versions. Use commands like 'firefox --version' or 'apt list --installed | grep firefox' on Linux. Compare versions against the fixed releases.

Impact Analysis

An attacker could exploit this to cause application crashes or execute arbitrary code. Users of affected Firefox versions may experience system instability or security breaches if the vulnerability is exploited.

Mitigation Strategies

Update Firefox to version 154 or later, Firefox ESR to version 140.14 or later, or Firefox ESR to version 153.1 or later to address the integer overflow in the Graphics component.

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