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Status published
Unknown
CVE-2025-10527
Sandbox escape due to use-after-free in the Graphics: Canvas2D component
Vulnerability Description
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Oskar L
References
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CVE-2025-9183
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Affected Vendor
Mozilla
View all reports →Affected Software
Firefox, Thunderbird
Vulnerable Versions:
140.3, 143
Timeline
Official Publish:
September 16th, 2025
Last Modified:
April 13th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.