Vulnerability · Published Apr 1, 2026 · Assigned by Foxit

CVE-2026-3780Foxit PDF Editor/Reader Installer Uncontrolled Search Path Privilege Escalation

High 7.3

In plain English

A high-severity security flaw in Foxit PDF Editor from Foxit Software Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.1%top 97.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The application's installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation.

Affected products (as reported)

Vendor	Product	Versions
Foxit Software Inc.	Foxit PDF Reader	Versions 2025.3 and earlier
Foxit Software Inc.	Foxit PDF Editor	Versions 2025.3 and earlierVersions 14.0.2 and earlier

Weakness: CWE-426 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

References

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