CVE-2026-91804

HIGHCVSS 7.8

Description

A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s rendering of Circle annotations with malformed Cloudy appearance streams in specially crafted PDF files. Insufficient validation of the appearance geometry can result in memory corruption and application crashes.

Timeline

Published:September 23rd, 2026 8:17 AM

Last modified:September 23rd, 2026 5:58 PM

CVSS Scoring

CVSS v3: 7.8 (HIGH)

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-787

References & Reports

Advisories, patches, and third-party reports

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

Source: NIST NVD · Data may lag official sources by up to one minute