CVE-2026-4689 (GCVE-0-2026-4689)
Vulnerability from cvelistv5
Published
2026-03-24 12:30
Modified
2026-04-13 13:48
Severity ?
10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
References
Impacted products
Vendor Product Version
Mozilla Firefox Unaffected: 115.34
Unaffected: 140.9
Unaffected: 149
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   Mozilla Thunderbird Unaffected: 140.9
Unaffected: 149
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