CVE-2026-91808

Foxit PDF Editor/Reader JPEG File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

Published Sep 23, 2026 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Description
A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor Reader’s handling of PDF image objects with inconsistent compression metadata. Insufficient validation during image decoding may result in an undersized buffer and an out-of-bounds read during rendering, causing an application crash.

Analysis

AI-generated

Technical impact

Foxit PDF Editor and Reader contain a heap‑based out‑of‑bounds read that arises when the software processes PDF image objects with inconsistent compression metadata. The decoder underestimates the required buffer size and reads memory beyond the allocated area while rendering. This flaw can cause an application crash. The vulnerability is known as an out‑of‑bounds read weakness.

Affected Systems

Foxit PDF Editor and Foxit PDF Reader applications are affected. No specific version information is disclosed in the available data.

Risk and Exploitability

The CVSS score is 6.1, indicating moderate severity. The EPSS score is reported as less than 1 %, suggesting very low current exploitation probability. The vulnerability is not identified in CISA’s known exploited vulnerabilities catalog. The likely attack window is local or remote, in that a malicious PDF file can be crafted and presented to a user. The attacker would need the victim to open the compromised file; no network‑only vector is described. The resulting crash could deny service.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Foxit PDF Editor and Reader patches released by Foxit Software Inc. to eliminate the vulnerability.
  • Avoid opening PDFs from untrusted or unknown sources until a patch is applied.
  • Configure system or user environments to run PDF viewing applications in a restricted sandbox or low‑privilege context to mitigate potential denial‑of‑service impacts.

Generated by OpenCVE AI on September 23, 2026 at 15:26 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Foxit
Foxit pdf Editor
Foxit pdf Reader
Microsoft
Microsoft windows
CPEs cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Foxit
Foxit pdf Editor
Foxit pdf Reader
Microsoft
Microsoft windows
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
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor Reader’s handling of PDF image objects with inconsistent compression metadata. Insufficient validation during image decoding may result in an undersized buffer and an out-of-bounds read during rendering, causing an application crash.
Title Foxit PDF Editor/Reader JPEG File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Foxit
Published
Updated
Sep 23, 2026, 3:26 PM
Reserved
Sep 15, 2026, 7:34 AM
Status
Analyzed
Published
Sep 23, 2026, 8:17 AM
Modified
Oct 8, 2026, 1:53 PM