CVE-2026-5941 Foxit PDF Editor/Reader AcroForm Signature Remote Code Execution Vulnerability
Attackers can trigger remote code execution or crashes by sending malformed PDFs with crafted form fields to Foxit PDF Editor or Reader.
- 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-2026-5941?
CVE-2026-5941 is a high-severity memory corruption vulnerability in Foxit Pdf Editor, published on 27 Apr 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
Parsing logic flaws cause non-signature data to be misidentified as valid signatures when processing malformed form field hierarchies, leading to invalid memory writes and program crashes during internal data structure construction.
Weakness: CWE-20
Which versions are affected by CVE-2026-5941?
It affects 2 products.
Products include Foxit Pdf Editor, Foxit Pdf Reader.
How do I fix CVE-2026-5941?
No fix has been published for CVE-2026-5941 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-5941 being exploited?
There is no known exploitation of CVE-2026-5941 in the wild and no public exploit code.
Other vulnerabilities in Foxit Pdf Editor
Sources
Also known as GHSA-pxgr-8px7-gpc8.