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CVE-2025-11152— Sandbox escape due to integer overflow in the Graphics: Canvas2D component

Quick assessment

Affected
Mozilla Firefox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 143.0.3之前版本存在安全漏洞，该漏洞源于在Graphics: Canvas2D组件中由于整数溢出导致的沙盒逃逸。

AI Predicted 9.8 Difficulty: Easy EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-11152

Vulnerability Information
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Vulnerability Title
Sandbox escape due to integer overflow in the Graphics: Canvas2D component
Source: CVE Program / CVE List V5
Vulnerability Description
Sandbox escape due to integer overflow in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143.0.3.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Firefox 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 143.0.3之前版本存在安全漏洞，该漏洞源于在Graphics: Canvas2D组件中由于整数溢出导致的沙盒逃逸。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mozilla Firefox 143.0.3 ~ * -

II. Public POCs for CVE-2025-11152

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III. Intelligence Information for CVE-2025-11152

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Vendor Advisories for CVE-2025-11152 (1)

Same Patch Batch · Mozilla · 2025-09-30 · 3 CVEs total

CVE-2025-11153 JIT miscompilation in the JavaScript Engine: JIT component
CVE-2025-10859 Data stored in cookies for non-HTML content while browsing Incognito could be viewed after

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2025-11152

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