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CVE-2025-49710— Integer overflow in OrderedHashTable

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 139.0.4之前版本存在安全漏洞，该漏洞源于JavaScript引擎中OrderedHashTable存在整数溢出。

AI Predicted 8.4 Difficulty: Easy EPSS 0.74% · P54

Affected Version Matrix 1

VendorProduct Version RangeStatus
Mozilla Firefox 139.0.4≤ * unaffected
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I. Basic Information for CVE-2025-49710

Vulnerability Information
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Vulnerability Title
Integer overflow in OrderedHashTable
Source: CVE Program / CVE List V5
Vulnerability Description
An integer overflow was present in `OrderedHashTable` used by the JavaScript engine. This vulnerability was fixed in Firefox 139.0.4.
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 139.0.4之前版本存在安全漏洞，该漏洞源于JavaScript引擎中OrderedHashTable存在整数溢出。
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 139.0.4 ~ * -

II. Public POCs for CVE-2025-49710

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III. Intelligence Information for CVE-2025-49710

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IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2025-49710

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