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CVE-2025-8044— Memory safety bugs fixed in Firefox 141 and Thunderbird 141

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 Firefox和Mozilla Thunderbird存在缓冲区错误漏洞，该漏洞源于内存安全问题，可能导致执行任意代码。

AI Predicted 8.8 Difficulty: Easy EPSS 0.43% · P36

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-8044

Vulnerability Information
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Vulnerability Title
Memory safety bugs fixed in Firefox 141 and Thunderbird 141
Source: CVE Program / CVE List V5
Vulnerability Description
Memory safety bugs present in Firefox 140 and Thunderbird 140. 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 141 and Thunderbird 141.
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和Mozilla Thunderbird 缓冲区错误漏洞
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 Firefox和Mozilla Thunderbird存在缓冲区错误漏洞，该漏洞源于内存安全问题，可能导致执行任意代码。
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 141 ~ * -
Mozilla Thunderbird 141 ~ * -

II. Public POCs for CVE-2025-8044

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III. Intelligence Information for CVE-2025-8044

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Vendor Advisories for CVE-2025-8044 (2)

Same Patch Batch · Mozilla · 2025-07-22 · 16 CVEs total

CVE-2025-8043 Incorrect URL truncation
CVE-2025-8035 Memory safety bugs fixed in Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1,
CVE-2025-8040 Memory safety bugs fixed in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thun
CVE-2025-8034 Memory safety bugs fixed in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13
CVE-2025-8032 XSLT documents could bypass CSP
CVE-2025-8038 CSP frame-src was not correctly enforced for paths
CVE-2025-8033 Incorrect JavaScript state machine for generators
CVE-2025-8039 Search terms persisted in URL bar
CVE-2025-8030 Potential user-assisted code execution in “Copy as cURL” command
CVE-2025-8031 Incorrect URL stripping in CSP reports
CVE-2025-8037 Nameless cookies shadow secure cookies
CVE-2025-8028 Large branch table could lead to truncated instruction
CVE-2025-8029 javascript: URLs executed on object and embed tags
CVE-2025-8036 DNS rebinding circumvents CORS
CVE-2025-8027 JavaScript engine only wrote partial return value to stack

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2025-8044

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