CVE-2026-2796CRITICAL 9.8EPSS p50.3%

CVE-2026-2796CVE-2026-2796

Description

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.76% probability of exploitation · percentile 50.3% · 2026-06-19T12:03:05Z
Published2026-02-24
Last modified2026-04-13

Underlying weaknesses· 1

CWE-843

References

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

1

TypeTargetConfidenceTier
WeaknessAccess of Resource Using Incompatible Type ('Type Confusion')cwe-8430%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.