CVE-2026-2804
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Lifecycle Timeline
3Description
Use-after-free in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
Analysis
A use-after-free vulnerability in Firefox and Thunderbird's JavaScript WebAssembly engine allows remote attackers to achieve information disclosure or data manipulation through a malicious webpage or email attachment that requires user interaction. Affected versions include Firefox below 148 and Thunderbird below 148, with no patch currently available. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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External POC / Exploit Code
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