Description
An out-of-bounds write vulnerability exists in the PDF rendering process of Foxit PDF Editor/Reader due to insufficient consistency and boundary validation when processing malformed color space data, which may cause the program to crash and potentially lead to remote code execution.
Published: 2026-09-23
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Patch Now
AI Analysis

Impact

Foxit PDF Editor and Foxit PDF Reader contain an out-of-bounds write bug in the PDF rendering engine. When the applications process malformed DeviceN color space data within a PDF, the insufficient bounds checking allows an attacker to corrupt memory, potentially leading to a crash and remote code execution. The weakness corresponds to CWE‑787.

Affected Systems

The vulnerability affects all versions of Foxit PDF Editor and Foxit PDF Reader distributed by Foxit Software Inc. No specific version ranges are listed in the advisory, so any installation remains potentially vulnerable until updated.

Risk and Exploitability

The CVSS score of 7.8 indicates high severity, while the EPSS score of less than 1% implies a very low probability of exploitation in the wild at present. The vulnerability is not included in the CISA KEV catalog. Attackers would likely deliver a specially crafted PDF containing DeviceN color space definitions that trigger the overrun; the exploit would execute when the user opens the file. Hence, the risk remains significant for organizations that allow untrusted PDFs to be opened on endpoints.

Generated by OpenCVE AI on September 23, 2026 at 14:46 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Foxit PDF Editor and Foxit PDF Reader to the latest releases that contain the out-of-bounds write fix, as detailed in Foxit’s security bulletin.
  • If a patch cannot be applied immediately, configure the applications or your PDF handling policies to block or sanitize DeviceN color space data in PDF files, preventing rendering until a fix is available.
  • Monitor endpoints for abnormal memory access patterns or application crashes after opening PDFs from untrusted sources, and consult Foxit support for guidance on interim mitigations.

Generated by OpenCVE AI on September 23, 2026 at 14:46 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 24 Sep 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Foxitsoftware
Foxitsoftware foxit Pdf Editor
Foxitsoftware foxit Reader
Vendors & Products Foxitsoftware
Foxitsoftware foxit Pdf Editor
Foxitsoftware foxit Reader

Wed, 23 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 23 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description An out-of-bounds write vulnerability exists in the PDF rendering process of Foxit PDF Editor/Reader due to insufficient consistency and boundary validation when processing malformed color space data, which may cause the program to crash and potentially lead to remote code execution.
Title Foxit PDF Editor/Reader DeviceN Colorspace Out-Of-Bounds Write Remote Code Execution Vulnerability
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Subscriptions

Foxitsoftware Foxit Pdf Editor Foxit Reader
cve-icon MITRE

Status: PUBLISHED

Assigner: Foxit

Published:

Updated: 2026-09-23T14:47:09.407Z

Reserved: 2026-09-15T07:34:40.287Z

Link: CVE-2026-91794

cve-icon Vulnrichment

Updated: 2026-09-23T14:47:05.563Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-23T08:17:11.337

Modified: 2026-09-23T17:58:26.570

Link: CVE-2026-91794

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-24T09:11:55Z

Weaknesses