CVE-2026-91790
CVSS v3
7.8
HIGH
EPSS Score
0.1 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
When rendering the page image, Foxit PDF Editor/Reader fails to perform validation on image objects whose optional content attributes are malformed. As a result, the program may access an already-freed internal data structure, triggering a crash due to UAF.
Technical details
- Published
- 2026-09-23
- Last Modified
- 2026-09-23
Frequently asked questions
What is CVE-2026-91790?
When rendering the page image, Foxit PDF Editor/Reader fails to perform validation on image objects whose optional content attributes are malformed. As a result, the program may access an already-freed internal data structure, triggering a crash due to UAF.
Is CVE-2026-91790 actively exploited?
Active exploitation of CVE-2026-91790 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-2026-91790?
CVE-2026-91790 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2026-91790 affecting your environment?
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