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CVE-2026-91813

7.8, high

Foxit Software Inc. Foxit PDF Editor Time-of-Check Time-of-Use Race Condition Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.8, high high CVSS v3.1
EPSS, next 30 days
<0.1% higher than 0.4% of scored CVEs
Exploitation
No public evidence
Published
23 Sept 202624 days ago

Description

A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows an update package to be replaced between download and high-privilege extraction due to insufficient file locking and integrity validation. This could enable local attackers to execute arbitrary code with elevated privileges.

Details

Vendor
Foxit Software Inc.
Product
Foxit PDF Editor
Weakness
CWE-367 (opens in a new tab)
Status
Analyzed
Updated
8 Oct 2026
Assigner
14984358-7092-470d-8f34-ade47a7658a2

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References 1

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Foxit Software Inc. CVEs

Every Foxit Software Inc. CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-91803 Foxit Software Inc. Foxit PDF Editor Uncontrolled Search Path Element Vulnerability EPSS 0.1% 7.8, high
  • CVE-2026-91812 A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows man-in-the-middle attackers to bypass certificate validation and… EPSS 0.1% 8.1, high

Beyond this page

Is CVE-2026-91813 in your network?

This page tells you how dangerous CVE-2026-91813 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.