Description
Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.
Published: 2026-10-20
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 29 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 29 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-190
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-680

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-178

Tue, 20 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Tue, 20 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Description Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158.0.1. Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.
References

Tue, 20 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-178

Tue, 20 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
Description Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158.0.1.
Title Incorrect boundary conditions in the SVG component
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-10-29T17:44:03.368Z

Reserved: 2026-10-20T06:00:54.207Z

Link: CVE-2026-113399

cve-icon Vulnrichment

Updated: 2026-10-29T17:43:04.384Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T13:16:40.973

Modified: 2026-10-29T18:17:23.033

Link: CVE-2026-113399

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T20:15:09Z

Weaknesses
  • CWE-190

    Integer Overflow or Wraparound

  • CWE-20

    Improper Input Validation

  • CWE-680

    Integer Overflow to Buffer Overflow