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CVE-2024-3855

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 125 版本存在安全漏洞，该漏洞源于在某些情况下，JIT 错误地优化了 MSubstr 操作，从而导致越界读取。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions
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I. Basic Information for CVE-2024-3855

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In certain cases the JIT incorrectly optimized MSubstr operations, which led to out-of-bounds reads. This vulnerability affects Firefox < 125.
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 125 版本存在安全漏洞，该漏洞源于在某些情况下，JIT 错误地优化了 MSubstr 操作，从而导致越界读取。
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 unspecified ~ 125 -

II. Public POCs for CVE-2024-3855

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III. Intelligence Information for CVE-2024-3855

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Vendor Advisories for CVE-2024-3855 (2)

Same Patch Batch · Mozilla · 2024-04-16 · 15 CVEs total

CVE-2024-3852 Mozilla Firefox 安全漏洞
CVE-2024-3853 Mozilla Firefox 安全漏洞
CVE-2024-3854 Mozilla Firefox 安全漏洞
CVE-2024-3856 Mozilla Firefox 安全漏洞
CVE-2024-3857 Mozilla Firefox 安全漏洞
CVE-2024-3858 Mozilla Firefox 安全漏洞
CVE-2024-3859 Mozilla Firefox 安全漏洞
CVE-2024-3860 Mozilla Firefox 安全漏洞
CVE-2024-3861 Mozilla Firefox 安全漏洞
CVE-2024-3863 Mozilla Firefox 安全漏洞
CVE-2024-3302 Mozilla Firefox 安全漏洞
CVE-2024-3862 Mozilla Firefox 安全漏洞
CVE-2024-3865 Mozilla Firefox 安全漏洞
CVE-2024-3864 Mozilla Firefox、Firefox ESR 和 Thunderbird 安全漏洞

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2024-3855

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