CVE-2026-8952HIGH 8.8EPSS p30.1%

CVE-2026-8952CVE-2026-8952

Description

Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

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
EPSS0.37% probability of exploitation · percentile 30.1% · 2026-08-03T12:00:16Z
Published2026-05-19
Last modified2026-05-20

Underlying weaknesses· 1

CWE-269

References

  1. https://bugzilla.mozilla.org/show_bug.cgi?id=2021727
  2. https://www.mozilla.org/security/advisories/mfsa2026-46/
  3. https://www.mozilla.org/security/advisories/mfsa2026-50/

1

TypeTargetConfidenceTier
WeaknessImproper Privilege Managementcwe-2690%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.