CVE-2026-91807

A heap-based out-of-bounds read vulnerability exists in Foxit PDF Editor/Reader’s handling of malformed image soft-mask data. Insufficient validation of the soft-mask data attribute during image parsing may cause an arithmetic underflow, resulting in an out-of-bounds read and application crash.

Score

CVSS 3.1 6.1 Medium

Status

Analyzed - 14984358-7092-470d-8f34-ade47a7658a2

Published

2026-09-23

Last modified

2026-10-15

Weaknesses

CWE-125

Affected products

• Pdf Editor (Foxit)
• Pdf Reader (Foxit)
• Foxit Pdf Editor (Foxit Software Inc.)
• Foxit Pdf Reader (Foxit Software Inc.)

References

• https://www.foxit.com/support/security-bulletins.html