CVE-2026-91807 Foxit PDF Editor/Reader PDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
An attacker can cause an out-of-bounds read and application crash in Foxit PDF Editor/Reader by providing a malformed PDF file with invalid soft-mask data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-91807?
CVE-2026-91807 is a medium-severity vulnerability in Foxit Pdf Editor, published on 23 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-125
Which versions are affected by CVE-2026-91807?
It affects 2 products.
Products include Foxit Pdf Editor, Foxit Pdf Reader.
How do I fix CVE-2026-91807?
No fix has been published for CVE-2026-91807 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-91807 being exploited?
There is no known exploitation of CVE-2026-91807 in the wild and no public exploit code.
Other vulnerabilities in Foxit Pdf Editor
Sources
Also known as GHSA-wjh9-8m64-vcfh.