Vulnerability Report

CVE-2026-3775

Title: Local Privilege Escalation via Untrusted Library Loading in Update Service

Auth Bypass

Proof Of Concept

PoC Available for CVE-2026-3775

CWE Category CWE-427
Published Date Apr 01, 2026
Modified Date Apr 14, 2026
Exploit Status Available
Score 7.8 CVSS v3.1
Exploit Probability (EPSS)
0.25%

Vulnerability Summary

CVE-2026-3775: 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.

Impacted Vendors

F
foxit 2
N
nuance 1
F
foxitsoftware 2

Reference Links

https://www.foxit.com/support/security-bulletins.html
CVSS v3.1
Source Entity 14984358-7092-470d-8f34-ade47a7658a2
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-3775 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/Paradoxis/CVE-2026-57239
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.