CVE-2026-74961— Side-channel in the Web Audio component
Possible ATT&CK Techniques 1AI
T1213 · Data from Information RepositoriesAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mozilla | Firefox | 153.1≤ 153.* | unaffected |
154≤ * | unaffected | ||
| Mozilla | Thunderbird | 153.1≤ 153.* | unaffected |
154≤ * | unaffected |
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I. Basic Information for CVE-2026-74961
Vulnerability Information
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Vulnerability Title
Side-channel in the Web Audio component
Source: CVE Program / CVE List V5
Vulnerability Description
Side-channel in the Web Audio component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
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 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是Mozilla基金会开源的一款网页浏览器。 Mozilla Firefox 154之前版本和Mozilla Firefox ESR 153.1之前版本存在安全漏洞，该漏洞源于Web Audio组件存在侧信道问题。
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 | 153.1 ~ 153.* | - | |
| Mozilla | Thunderbird | 153.1 ~ 153.* | - |
II. Public POCs for CVE-2026-74961
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-74961 (4)
Same Patch Batch · Mozilla · 2026-08-18 · 58 CVEs total
| CVE-2026-74951 | Clickjacking issue in Firefox for Android | |
| CVE-2026-74979 | Mitigation bypass in the Add-ons Manager component | |
| CVE-2026-74982 | Denial-of-service in the Widget component | |
| CVE-2026-74985 | Privilege escalation in the Enterprise Policies component | |
| CVE-2026-74984 | Race condition in the JavaScript Engine component | |
| CVE-2026-74986 | Site isolation issue in the CSS Parsing and Computation component | |
| CVE-2026-74958 | Information disclosure in the WebRTC component | |
| CVE-2026-74966 | Information disclosure in the Form Autofill component | |
| CVE-2026-74956 | Same-origin policy bypass in the DOM: Service Workers component | |
| CVE-2026-74952 | Privilege escalation in the Application Update component | |
| CVE-2026-74977 | Integer overflow in the Graphics component | |
| CVE-2026-74955 | Privilege escalation in the Request Handling component | |
| CVE-2026-74954 | Information disclosure due to side-channel in the Storage: Cache API component | |
| CVE-2026-74937 | Use-after-free in the JavaScript: GC component | |
| CVE-2026-74938 | Mitigation bypass in the JavaScript: GC component | |
| CVE-2026-74950 | Privilege escalation in the Downloads API component | |
| CVE-2026-74947 | Privilege escalation due to invalid pointer in the Graphics component | |
| CVE-2026-74983 | Mitigation bypass in the Data Loss Prevention component | |
| CVE-2026-74990 | Internally found bugs fixed in Thunderbird ESR 140.14, Thunderbird ESR 153.1 and Thunderbi | |
| CVE-2026-74987 | Internally found bugs fixed in Thunderbird ESR 140.14, Thunderbird ESR 153.1 and Thunderbi |
Showing top 20 of 58 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Firefox
- CVE-2026-74989
Internally found bugs fixed in Thunderbird 154 - CVE-2026-74988
Internally found bugs fixed in Thunderbird ESR 153.1 and Thu - CVE-2026-74984
Race condition in the JavaScript Engine component - CVE-2026-74985
Privilege escalation in the Enterprise Policies component - CVE-2026-74982
Denial-of-service in the Widget component
Same vendor: Mozilla
- CVE-2026-74989
Internally found bugs fixed in Thunderbird 154 - CVE-2026-74988
Internally found bugs fixed in Thunderbird ESR 153.1 and Thu - CVE-2026-74984
Race condition in the JavaScript Engine component - CVE-2026-74985
Privilege escalation in the Enterprise Policies component - CVE-2026-74982
Denial-of-service in the Widget component
V. Comments for CVE-2026-74961
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