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CVE-2026-0892— Memory safety bugs fixed in Firefox 147 and Thunderbird 147

EPSS 0.02% · P7
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I. Basic Information for CVE-2026-0892

Vulnerability Information
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Vulnerability Title
Memory safety bugs fixed in Firefox 147 and Thunderbird 147
Source: NVD (National Vulnerability Database)
Vulnerability Description
Memory safety bugs present in Firefox 146 and Thunderbird 146. 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 147 and Thunderbird 147.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mozilla Firefox和Mozilla Thunderbird 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 Firefox 146版本和Mozilla Thunderbird 146版本存在安全漏洞，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。
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

VendorProductAffected VersionsCPESubscribe
MozillaFirefox 147 ~ * -
MozillaThunderbird 147 ~ * -

II. Public POCs for CVE-2026-0892

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III. Intelligence Information for CVE-2026-0892

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Same Patch Batch · Mozilla · 2026-01-13 · 16 CVEs total

CVE-2026-0877Mitigation bypass in the DOM: Security component
CVE-2026-0878Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component
CVE-2026-0879Sandbox escape due to incorrect boundary conditions in the Graphics component
CVE-2026-0881Sandbox escape in the Messaging System component
CVE-2026-0880Sandbox escape due to integer overflow in the Graphics component
CVE-2026-0883Information disclosure in the Networking component
CVE-2026-0882Use-after-free in the IPC component
CVE-2026-0886Incorrect boundary conditions in the Graphics component
CVE-2026-0885Use-after-free in the JavaScript: GC component
CVE-2026-0884Use-after-free in the JavaScript Engine component
CVE-2026-0887Clickjacking issue, information disclosure in the PDF Viewer component
CVE-2026-0888Information disclosure in the XML component
CVE-2026-0890Spoofing issue in the DOM: Copy & Paste and Drag & Drop component
CVE-2026-0889Denial-of-service in the DOM: Service Workers component
CVE-2026-0891Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thun

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2026-0892

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