CVE-2026-0880HIGH 8.8EPSS p44.0%

CVE-2026-0880CVE-2026-0880

mozilla / firefox

Description

Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

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
EPSS0.57% probability of exploitation · percentile 44.0% · 2026-08-03T12:00:16Z
Published2026-01-13
Last modified2026-07-15

Underlying weaknesses· 1

CWE-190

References

  1. https://bugzilla.mozilla.org/show_bug.cgi?id=2005014
  2. https://www.mozilla.org/security/advisories/mfsa2026-01/
  3. https://www.mozilla.org/security/advisories/mfsa2026-02/
  4. https://www.mozilla.org/security/advisories/mfsa2026-03/
  5. https://www.mozilla.org/security/advisories/mfsa2026-04/
  6. https://www.mozilla.org/security/advisories/mfsa2026-05/

1

TypeTargetConfidenceTier
WeaknessInteger Overflow or Wraparoundcwe-1900%live

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