CVE-2026-91802

A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s WebP image decoding due to improper handling of bitmap stride and target buffer formats. Successful exploitation could result in an application crash.

Score

CVSS 3.1 7.8 High

Status

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

Published

2026-09-23

Last modified

2026-10-08

Weaknesses

CWE-787

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