Vulnerability in Foxit Software Inc. Pdf Editor
CVE-2026-91812
A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows man-in-the-middle attackers to bypass certificate validation and package integrity checks, potentially enabling arbitrary code execution with system privileges.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.9 (High). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (2.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
- Foxit Software Inc. Pdf Editor — versions Versions 13.2.6 and earlier, Versions 14.0.7 and earlier, Versions 2026.2 and earlier
- Foxit Software Inc. Pdf Reader — versions Versions 2026.2 and earlier
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-91812?
- CVE-2026-91812 is a high-severity vulnerability in Foxit Software Inc. Pdf Editor, classified under Improper Certificate Validation. CVSS score: 7.9/10. Published 2026-09-23.
- How severe is CVE-2026-91812?
- High severity. CVSS v3 base score is 7.9 out of 10.