CVE-2026-2798HIGH 8.8EPSS p16.2%

CVE-2026-2798CVE-2026-2798

mozilla / firefox

Description

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS0.25% probability of exploitation · percentile 16.2% · 2026-08-03T12:00:16Z
Published2026-02-24
Last modified2026-07-15

Underlying weaknesses· 1

CWE-416

References

  1. https://bugzilla.mozilla.org/show_bug.cgi?id=2014136
  2. https://www.mozilla.org/security/advisories/mfsa2026-13/
  3. https://www.mozilla.org/security/advisories/mfsa2026-16/

1

TypeTargetConfidenceTier
WeaknessUse After Freecwe-4160%live

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