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CVE-2025-3028— Use-after-free triggered by XSLTProcessor

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和Mozilla Thunderbird都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Thunderbird是一套从Mozilla Application Suite独立出来的电子邮件客户端软件。该软件支持IMAP、POP邮件协议以及HTML邮件格式。 Mozilla多款产品存在安全漏洞，该漏洞源于XSLTProcessor转换文档时导致释放后重用。以下产品及版本受到影响：Firefox 137之前版本、Firefo

AI Predicted 5.5 Difficulty: Moderate EPSS 0.83% · P55

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-3028

Vulnerability Information
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Vulnerability Title
Use-after-free triggered by XSLTProcessor
Source: CVE Program / CVE List V5
Vulnerability Description
JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. This vulnerability was fixed in Firefox 137, Firefox ESR 115.22, 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和Mozilla Thunderbird都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Thunderbird是一套从Mozilla Application Suite独立出来的电子邮件客户端软件。该软件支持IMAP、POP邮件协议以及HTML邮件格式。 Mozilla多款产品存在安全漏洞，该漏洞源于XSLTProcessor转换文档时导致释放后重用。以下产品及版本受到影响：Firefox 137之前版本、Firefo
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 115.22 ~ 115.* -
Mozilla Thunderbird 128.9 ~ 128.* -

II. Public POCs for CVE-2025-3028

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-3028

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Vendor Advisories for CVE-2025-3028 (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-2025-3030 Memory safety bugs fixed in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbi
CVE-2025-3029 URL Bar Spoofing via non-BMP Unicode characters

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2025-3028

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