CVE-2026-91813
CVSS v3
8.8
HIGH
EPSS Score
0.1 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2026-09-23
- Last Modified
- 2026-09-23
Frequently asked questions
What is CVE-2026-91813?
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.
Is CVE-2026-91813 actively exploited?
Active exploitation of CVE-2026-91813 has not been confirmed. Its EPSS score was 0.1% on 2026-09-28, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-91813?
CVE-2026-91813 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2026-91813 affecting your environment?
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