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Vulnerability record · CVE-2025-13026 · published 11 November 2025

CVE-2025-13026: Mozilla firefox vulnerability

Mozilla · Firefox

Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 145 and Thunderbird 145.

9.8 CVSS 3.1 Critical EPSS 0.36% · top 73.3% CWE-703 · CWE-703
9.8CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 145 and Thunderbird 145.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.mozilla.org/show_bug.cgi?id=1994441 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-87/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-90/

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-13026), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.