Description Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Exploitability: 3.9 | Impact: 3.4 Attack Vector: Network
Complexity: Low
Privileges: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: Low
Affected Packages3 packages
🔴 Vulnerability Details3 CVEList Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component ↗ 2025-09-16 ▶ GHSA GHSA-5qj7-cv36-4gxh: This vulnerability affects Firefox < 143, Firefox ESR < 140 ↗ 2025-09-16 ▶ OSV CVE-2025-10528: Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component ↗ 2025-09-16 ▶
📋 Vendor Advisories7 Ubuntu Thunderbird vulnerabilities ↗ 2026-02-02 ▶ Red Hat firefox: thunderbird: Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component ↗ 2025-09-16 ▶ Debian CVE-2025-10528: firefox - Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canva... ↗ 2025 ▶ Mozilla Mozilla Foundation Security Advisory 2025-73: CVE-2025-10528 ↗ ▶ Mozilla Mozilla Foundation Security Advisory 2025-75: CVE-2025-10528 ↗ ▶ Show 2 more