CVE-2026-4685 Details
Description
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
A vulnerability exists in Mozilla Firefox versions prior to 149, as well as in Firefox ESR versions prior to 115.34 and prior to 140.9. This vulnerability is due to incorrect boundary conditions in the Graphics: Canvas2D component, which could potentially be exploited to cause unintended behavior or errors.
Users can upgrade to Firefox 149, Firefox ESR 115.34, or Firefox ESR 140.9 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 26, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-754 | Improper Check for Unusual or Exceptional Conditions | [email protected] |
| CWE-754 | Improper Check for Unusual or Exceptional Conditions | CISA-ADP |
| CWE-787 | Out-of-bounds Write | redhat-SADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 115.34.0 < 149.0 >= 128.0, < 140.9.0 |
CPE
Remediation
| |
Change History
9 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | redhat-SADP |
| Jun 30, 2026 | CVE Modified | redhat-SADP |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Apr 13, 2026 | CVE Modified | [email protected] |
| Mar 26, 2026 | CVE Modified | CISA-ADP |
| Mar 24, 2026 | CVE Modified | [email protected] |
| Mar 24, 2026 | Initial Analysis | [email protected] |
| Mar 24, 2026 | New CVE Received | [email protected] |