CVE-2026-4688 Details
Description
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
A sandbox escape vulnerability has been identified in Mozilla Firefox versions prior to 149 and in Firefox ESR versions prior to 140.9. This vulnerability arises from a use-after-free issue in the Disability Access APIs component, which could potentially be exploited to escape the browser's sandbox restrictions.
Users can upgrade to Firefox 149 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 25, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
| CWE-416 | Use After Free | CISA-ADP |
| CWE-825 | Expired Pointer Dereference | redhat-SADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 140.9.0 < 149.0 |
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 | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | CVE Modified | [email protected] |
| Mar 25, 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] |