EUVD-2026-14861
GHSA-c97j-hmj5-572h
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionNVD
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149.
AnalysisAI
Firefox versions prior to 149 contain a use-after-free vulnerability in the JavaScript engine that allows unauthenticated remote attackers to achieve arbitrary code execution with no user interaction required. The vulnerability affects all Firefox users and can be exploited over the network to gain complete control over an affected system. …
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RemediationAI
Within 24 hours: Identify all affected systems and apply vendor patches immediately. If patching is delayed, consider network segmentation to limit exposure.
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Vendor StatusVendor
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| sid | vulnerable | 148.0.2-1 | - |
| (unstable) | fixed | (unfixed) | - |
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External POC / Exploit Code
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