CVE-2026-74964: Vulnerability in Mozilla Firefox
An integer overflow vulnerability was identified in the Graphics component of Mozilla Firefox. This vulnerability was addressed and fixed in Firefox version 154, Firefox ESR 140.14, and Firefox ESR 153.1. The issue was part of a broader set of security fixes released by Mozilla on August 18, 2026, which included multiple high-impact vulnerabilities across various Firefox components. The integer overflow could potentially lead to security issues if exploited, but no known exploits in the wild have been reported.
AI Analysis
Technical Summary
CVE-2026-74964 is an integer overflow vulnerability in the Graphics component of Mozilla Firefox. The flaw was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1 as part of a security update addressing multiple vulnerabilities. The vendor advisory classifies the impact of this vulnerability as moderate. The advisory does not provide detailed exploitation techniques or specific attack vectors for this issue. The fix is included in the stated Firefox versions, mitigating the risk posed by this vulnerability.
Potential Impact
The integer overflow in the Graphics component could lead to potential security issues such as memory corruption or other unintended behavior. However, the vendor advisory rates the impact as moderate and there are no known exploits in the wild. The vulnerability was fixed in recent Firefox releases, reducing the risk for users who have updated.
Mitigation Recommendations
A fix for this vulnerability is available. Users and administrators should update to Firefox 154, Firefox ESR 140.14, or Firefox ESR 153.1 or later to mitigate this vulnerability. No additional mitigation actions are indicated by the vendor advisory.
CVE-2026-74964: Vulnerability in Mozilla Firefox
Description
An integer overflow vulnerability was identified in the Graphics component of Mozilla Firefox. This vulnerability was addressed and fixed in Firefox version 154, Firefox ESR 140.14, and Firefox ESR 153.1. The issue was part of a broader set of security fixes released by Mozilla on August 18, 2026, which included multiple high-impact vulnerabilities across various Firefox components. The integer overflow could potentially lead to security issues if exploited, but no known exploits in the wild have been reported.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-74964 is an integer overflow vulnerability in the Graphics component of Mozilla Firefox. The flaw was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1 as part of a security update addressing multiple vulnerabilities. The vendor advisory classifies the impact of this vulnerability as moderate. The advisory does not provide detailed exploitation techniques or specific attack vectors for this issue. The fix is included in the stated Firefox versions, mitigating the risk posed by this vulnerability.
Potential Impact
The integer overflow in the Graphics component could lead to potential security issues such as memory corruption or other unintended behavior. However, the vendor advisory rates the impact as moderate and there are no known exploits in the wild. The vulnerability was fixed in recent Firefox releases, reducing the risk for users who have updated.
Mitigation Recommendations
A fix for this vulnerability is available. Users and administrators should update to Firefox 154, Firefox ESR 140.14, or Firefox ESR 153.1 or later to mitigate this vulnerability. No additional mitigation actions are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-08-17T11:58:31.172Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-74/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-76/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-77/","vendor":"Mozilla"}]
Threat ID: 6a845509c6e8be0332367435
Added to database: 08/18/2026, 12:50:17 UTC
Last enriched: 08/18/2026, 13:40:29 UTC
Last updated: 08/18/2026, 13:40:29 UTC
Views: 2
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