CVE-2025-12694 Overview
CVE-2025-12694 is a local privilege escalation vulnerability in the Forcepoint VPN Client for Windows. A local, non-administrative user can leverage the flaw to elevate privileges to SYSTEM, granting full control over the affected host. The issue affects VPN Client for Windows versions 6.11.3 and prior. The weakness is categorized under [CWE-250] (Execution with Unnecessary Privileges), indicating the client performs operations with excessive privilege that an unprivileged user can influence.
Critical Impact
Authenticated local users can obtain SYSTEM-level code execution on Windows endpoints running vulnerable Forcepoint VPN Client builds, enabling full host compromise.
Affected Products
- Forcepoint VPN Client for Windows version 6.11.3
- Forcepoint VPN Client for Windows versions prior to 6.11.3
- Windows endpoints with the vulnerable client installed
Discovery Timeline
- 2026-06-04 - CVE-2025-12694 published to NVD
- 2026-06-04 - Last updated in NVD database
Technical Details for CVE-2025-12694
Vulnerability Analysis
The vulnerability allows a local non-administrative user to escalate privileges to SYSTEM through the Forcepoint VPN Client for Windows. The client runs privileged components that accept input or perform actions influenced by lower-privileged users without enforcing sufficient privilege separation. This pattern matches [CWE-250], where a process executes with more privilege than required and exposes that privilege to untrusted callers.
Successful exploitation gives the attacker complete control of confidentiality, integrity, and availability on the local host. The attack requires local access and low privileges, but no user interaction. Once SYSTEM is obtained, the attacker can install persistent malware, disable security tooling, harvest credentials, and pivot across the network.
Root Cause
Forcepoint's advisory attributes the flaw to execution with unnecessary privileges in a VPN Client component reachable from a standard user context. A privileged service or helper performs operations on behalf of unprivileged callers without adequate validation of the requested action, target path, or invoking principal.
Attack Vector
Exploitation requires the attacker to already have a local account on the Windows host running a vulnerable build. The attacker interacts with the privileged VPN Client component from their standard user session to coerce it into performing actions in a SYSTEM security context. No remote access, social engineering, or administrative credentials are required.
No verified public exploit code is currently available. Refer to the Forcepoint Security Advisory for vendor-supplied technical details.
Detection Methods for CVE-2025-12694
Indicators of Compromise
- Child processes spawned by Forcepoint VPN Client services running as NT AUTHORITY\SYSTEM with parent processes owned by standard users.
- Unexpected file writes or DLL loads in Forcepoint VPN Client installation directories from non-administrative user sessions.
- New scheduled tasks, services, or local administrator accounts created shortly after VPN Client activity by an unprivileged user.
Detection Strategies
- Hunt for process lineage where a standard user session triggers SYSTEM-level activity originating from Forcepoint VPN Client binaries or services.
- Monitor for tampering with files, registry keys, or named pipes belonging to the VPN Client by non-administrative users.
- Alert on installation of legacy VPN Client builds (6.11.3 or earlier) across the fleet via software inventory data.
Monitoring Recommendations
- Forward Windows Security, Sysmon, and EDR telemetry to a central data lake and pivot on process integrity-level transitions.
- Track service and driver changes associated with the Forcepoint VPN Client across endpoints.
- Correlate local logon events with subsequent privilege escalation indicators on hosts running the vulnerable client.
How to Mitigate CVE-2025-12694
Immediate Actions Required
- Inventory all Windows endpoints running Forcepoint VPN Client and identify any on version 6.11.3 or earlier.
- Upgrade affected installations to the fixed release published in the Forcepoint Security Advisory.
- Restrict local logon rights on sensitive hosts until patches are deployed.
Patch Information
Forcepoint has published guidance and fixed builds in its security advisory. Administrators should consult the Forcepoint Security Advisory for the specific fixed version and upgrade procedure for VPN Client for Windows.
Workarounds
- Limit interactive logon on endpoints with the vulnerable client to trusted administrators only.
- Apply Windows application control policies to block execution of unauthorized binaries from user-writable paths.
- Increase EDR sensitivity for privilege escalation behaviors on hosts that cannot be patched immediately.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
