CVE-2025-49709— Memory corruption in canvas surfaces
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I. Basic Information for CVE-2025-49709
Vulnerability Information
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Vulnerability Title
Memory corruption in canvas surfaces
Source: NVD (National Vulnerability Database)
Vulnerability Description
Certain canvas operations could have lead to memory corruption. This vulnerability was fixed in Firefox 139.0.4.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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 139.0.4之前版本存在安全漏洞，该漏洞源于画布操作可能导致内存损坏。
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
II. Public POCs for CVE-2025-49709
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Same Patch Batch · Mozilla · 2025-06-11 · 4 CVEs total
| CVE-2025-49710 | Integer overflow in OrderedHashTable | |
| CVE-2025-5986 | Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:/// L | |
| CVE-2025-5687 | Local privilege escalation vulnerability in Mozilla VPN clients for macOS v2.27.0 and belo |
IV. Related Vulnerabilities
Same product: Firefox
- CVE-2026-8401
Sandbox escape in the Profile Backup component - CVE-2026-8391
Other issue in the JavaScript Engine component - CVE-2026-8390
Use-after-free in the JavaScript: WebAssembly component - CVE-2026-8389
JIT miscompilation in the JavaScript Engine: JIT component - CVE-2026-8388
Incorrect boundary conditions in the JavaScript Engine: JIT
Same vendor: Mozilla
- CVE-2026-8401
Sandbox escape in the Profile Backup component - CVE-2026-8391
Other issue in the JavaScript Engine component - CVE-2026-8390
Use-after-free in the JavaScript: WebAssembly component - CVE-2026-8389
JIT miscompilation in the JavaScript Engine: JIT component - CVE-2026-8388
Incorrect boundary conditions in the JavaScript Engine: JIT
V. Comments for CVE-2025-49709
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