CVE-2026-8091— Incorrect boundary conditions in the Audio/Video: Playback component
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I. Basic Information for CVE-2026-8091
Vulnerability Information
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Vulnerability Title
Incorrect boundary conditions in the Audio/Video: Playback component
Source: NVD (National Vulnerability Database)
Vulnerability Description
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2.
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，该漏洞源于音频视频播放组件中的边界条件错误。以下产品及版本受到影响：Firefox 150之前版本、Thunderbird 150之前
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 | 115.35.2 ~ 115.* | - | |
| Mozilla | Thunderbird | 140.10.1 ~ 140.* | - |
II. Public POCs for CVE-2026-8091
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|---|
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Same Patch Batch · Mozilla · 2026-05-07 · 5 CVEs total
| CVE-2026-8093 | Memory safety bugs fixed in Thunderbird 150.0.2 | |
| CVE-2026-8094 | Other issue in the WebRTC component | |
| CVE-2026-8092 | Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thunderbird 150.0.2 | |
| CVE-2026-8090 | Use-after-free in the DOM: Networking component |
IV. Related Vulnerabilities
Same product: Firefox
- CVE-2026-8093
Memory safety bugs fixed in Thunderbird 150.0.2 - CVE-2026-8094
Other issue in the WebRTC component - CVE-2026-8092
Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thu - CVE-2026-8090
Use-after-free in the DOM: Networking component - CVE-2026-7321
Sandbox escape due to incorrect boundary conditions in the W
Same vendor: Mozilla
- CVE-2026-8093
Memory safety bugs fixed in Thunderbird 150.0.2 - CVE-2026-8094
Other issue in the WebRTC component - CVE-2026-8092
Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thu - CVE-2026-8090
Use-after-free in the DOM: Networking component - CVE-2026-7321
Sandbox escape due to incorrect boundary conditions in the W
V. Comments for CVE-2026-8091
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