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CVE-2026-8094— Other issue in the WebRTC component

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 ESR是美国Mozilla基金会的Firefox(Web浏览器)的一个延长支持版本。 Mozilla Firefox ESR 140.10.2之前版本存在安全漏洞，该漏洞源于WebRTC组件中的其他问题。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.63% · P49

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
Mozilla Firefox 140.10.2≤ * unaffected
Mozilla Thunderbird 140.10.2≤ * unaffected
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I. Basic Information for CVE-2026-8094

Vulnerability Information
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Vulnerability Title
Other issue in the WebRTC component
Source: CVE Program / CVE List V5
Vulnerability Description
Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2.
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 ESR 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox ESR是美国Mozilla基金会的Firefox(Web浏览器)的一个延长支持版本。 Mozilla Firefox ESR 140.10.2之前版本存在安全漏洞，该漏洞源于WebRTC组件中的其他问题。
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 140.10.2 ~ * -
Mozilla Thunderbird 140.10.2 ~ * -

II. Public POCs for CVE-2026-8094

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-8094

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Vendor Advisories for CVE-2026-8094 (2)

Same Patch Batch · Mozilla · 2026-05-07 · 5 CVEs total

CVE-2026-8090 Use-after-free in the DOM: Networking component
CVE-2026-8091 Incorrect boundary conditions in the Audio/Video: Playback component
CVE-2026-8092 Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2
CVE-2026-8093 Memory safety bugs fixed in Firefox 150.0.2

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2026-8094

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