CVE-2026-2796 - Vulnerability Analysis

Overview

Firefox < 148 contains a JIT miscompilation vulnerability in the JavaScript: WebAssembly component, letting attackers cause incorrect code execution or behavior, exploit requires crafted WebAssembly code.

Severity & Score

Impact

Attackers can cause incorrect code execution or behavior, potentially leading to security bypass or crashes.

Mitigation

Update to Firefox version 148 or later.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2013165
• https://www.mozilla.org/security/advisories/mfsa2026-13/
• https://www.mozilla.org/security/advisories/mfsa2026-16/

Social Media Activity(1 post)

TheHackerWire

@thehackerwire

Feb 26, 2026

🔴 CVE-2026-2796 - Critical (9.8) JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148 and Thunderbird < 148. 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-2796/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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