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CVE-2025-3030— Memory safety bugs fixed in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9

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等都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Firefox ESR是Firefox(Web浏览器)的一个延长支持版本。Mozilla Thunderbird是一套从Mozilla Application Suite独立出来的电子邮件客户端软件。 Mozilla多款产品存在安全漏洞，该漏洞源于内存安全问题，可能导致内存损坏和执行任意代码。以下产品及版本受到影响：Firefox 137之前版本、Thunderbird

AI Predicted 8.7 Difficulty: Easy EPSS 0.47% · P39

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-3030

Vulnerability Information
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Vulnerability Title
Memory safety bugs fixed in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9
Source: CVE Program / CVE List V5
Vulnerability Description
Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.
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多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox等都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Firefox ESR是Firefox(Web浏览器)的一个延长支持版本。Mozilla Thunderbird是一套从Mozilla Application Suite独立出来的电子邮件客户端软件。 Mozilla多款产品存在安全漏洞，该漏洞源于内存安全问题，可能导致内存损坏和执行任意代码。以下产品及版本受到影响：Firefox 137之前版本、Thunderbird
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 128.9 ~ 128.* -
Mozilla Thunderbird 128.9 ~ 128.* -

II. Public POCs for CVE-2025-3030

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III. Intelligence Information for CVE-2025-3030

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Vendor Advisories for CVE-2025-3030 (2)

Same Patch Batch · Mozilla · 2025-04-01 · 8 CVEs total

CVE-2025-3035 Tab title disclosure across pages when using AI chatbot
CVE-2025-3034 Memory safety bugs fixed in Firefox 137 and Thunderbird 137
CVE-2025-3033 Opening local .url files could lead to another file being opened
CVE-2025-3032 Leaking file descriptors from the fork server
CVE-2025-3031 JIT optimization bug with different stack slot sizes
CVE-2025-3029 URL Bar Spoofing via non-BMP Unicode characters
CVE-2025-3028 Use-after-free triggered by XSLTProcessor

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2025-3030

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