Firefox Developer Edition (ach) 145.0
Firefox Developer Edition (ach) 145.0, released October 31, 2025, fixes 17 CVEs in Firefox Developer Edition (ach). None of them is reported as exploited. Patch Radar priority: Urgent. The latest Firefox Developer Edition (ach) is 151.0, which also fixes every one of these CVEs.
Superseded. The latest Firefox Developer Edition (ach) is 151.0, which also fixes every CVE on this page. Install that instead.
Priority of the 17 CVEs
Applies to
| Product | Version |
|---|---|
| Firefox Developer Edition (ach) | 145.0 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2025-13021 | Incorrect boundary conditions in the Graphics: WebGPU component | 9.8 | 0.0038 | None reported |
| Urgent | CVE-2025-13022 | Incorrect boundary conditions in the Graphics: WebGPU component | 9.8 | 0.0038 | None reported |
| Urgent | CVE-2025-13023 | Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component | 9.8 | 0.0038 | None reported |
| Urgent | CVE-2025-13024 | JIT miscompilation in the JavaScript Engine: JIT component | 9.8 | 0.0038 | None reported |
| Urgent | CVE-2025-13026 | Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component | 9.8 | 0.0038 | None reported |
| Urgent | CVE-2025-12380 | Use-after-free in WebGPU internals triggered from a compromised child process | 9.8 | 0.0034 | None reported |
| High | CVE-2025-13016 | Incorrect boundary conditions in the JavaScript: WebAssembly component | 7.5 | 0.0041 | None reported |
| High | CVE-2025-13027 | Memory safety bugs fixed in Firefox 145 and Thunderbird 145 | 8.1 | 0.0036 | None reported |
| High | CVE-2025-13014 | Use-after-free in the Audio/Video component | 8.8 | 0.0032 | None reported |
| High | CVE-2025-13020 | Use-after-free in the WebRTC: Audio/Video component | 8.8 | 0.0031 | None reported |
| High | CVE-2025-13025 | Incorrect boundary conditions in the Graphics: WebGPU component | 7.5 | 0.0030 | None reported |
| High | CVE-2025-13017 | Same-origin policy bypass in the DOM: Notifications component | 8.1 | 0.0028 | None reported |
| High | CVE-2025-13018 | Mitigation bypass in the DOM: Security component | 8.1 | 0.0028 | None reported |
| High | CVE-2025-13019 | Same-origin policy bypass in the DOM: Workers component | 8.1 | 0.0028 | None reported |
| High | CVE-2025-13012 | Race condition in the Graphics component | 7.5 | 0.0024 | None reported |
| High | CVE-2025-13015 | Spoofing issue in Firefox | 7.5 | 0.0023 | None reported |
| High | CVE-2025-13013 | Mitigation bypass in the DOM: Core & HTML component | 7.5 | 0.0022 | None reported |
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