CVE-2026-4722HIGH 8.8EPSS p35.5%

CVE-2026-4722CVE-2026-4722

Description

Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

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
EPSS0.43% probability of exploitation · percentile 35.5% · 2026-10-05T12:00:23Z
Published2026-03-24
Last modified2026-04-13

References

  1. https://bugzilla.mozilla.org/show_bug.cgi?id=2010097
  2. https://www.mozilla.org/security/advisories/mfsa2026-20/
  3. https://www.mozilla.org/security/advisories/mfsa2026-23/

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