CVE-2025-10528 - CVE House
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Status published Unknown CVE-2025-10528

Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component

Vulnerability 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.

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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Affected Vendor

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.