High severity · published Apr 1, 2026
CVE-2026-3775
Foxit PDF Editor/Reader Update Service Uncontrolled Search Path Element Local Privilege Escalation Vulnerability
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
The application's update service, when checking for updates, loads certain system libraries from a search path that includes directories writable by low‑privileged users and is not strictly restricted to trusted system locations. Because these libraries may be resolved and loaded from user‑writable locations, a local attacker can place a malicious library there and have it loaded with SYSTEM privileges, resulting in local privilege escalation and arbitrary code execution.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FP
Foxit PDF Editor · Foxit Software Inc.
Versions 2025.3 and earlier · source: vendor
FP
Foxit PDF Reader · Foxit Software Inc.
Versions 2025.3 and earlier · source: vendor
PE
Pdf Editor · Foxit
through 13.2.2.24014; 14.0.0.33046 through 14.0.2.33402; 2023.1.0.15510 through 2023.3.0.23028; 2024.1.0.23997 through 2024.4.1.27687; 2025.1.0.27937 through 2025.3.0.35737 · source: NVD
PR
Pdf Reader · Foxit
through 2025.3.0.35737 · source: NVD
In the news
VulnerabilityHigh
ZDI-26-251: Foxit PDF Reader Update Service Uncontrolled Search Path Element Local Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Foxit PDF Reader. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-3775.
Apr 2, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3775
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3775
Vendor Advisory
https://www.foxit.com/support/security-bulletins.html
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