CVE-2025-6426HIGH 8.8EPSS p6.9%

CVE-2025-6426CVE-2025-6426

Description

The executable file warning did not warn users before opening files with the `terminal` extension. *This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.

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
EPSS0.17% probability of exploitation · percentile 6.9% · 2026-06-19T12:03:05Z
Published2025-06-24
Last modified2026-04-13

Underlying weaknesses· 1

CWE-345

References

  1. https://bugzilla.mozilla.org/show_bug.cgi?id=1964385
  2. https://www.mozilla.org/security/advisories/mfsa2025-51/
  3. https://www.mozilla.org/security/advisories/mfsa2025-53/
  4. https://www.mozilla.org/security/advisories/mfsa2025-54/
  5. https://www.mozilla.org/security/advisories/mfsa2025-55/

1

TypeTargetConfidenceTier
WeaknessInsufficient Verification of Data Authenticitycwe-3450%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.