Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain low-privileged local user session
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DeliveryIdentify Forcepoint VPN Client service on host
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ExploitInvoke vulnerable privileged interface
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ExecutionCoerce SYSTEM-level execution of attacker payload
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PersistDump credentials and install persistence
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ImpactPivot laterally with elevated rights
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V8 - Authorization Unnecessary privilege execution
|
| Exploitation Conditions | Attacker must already have local interactive or remote-shell access as an authenticated low-privileged Windows user (PR:L) on a host where Forcepoint VPN Client for Windows 6.11.3 or earlier is installed and its privileged service is running; no user interaction by another party is required (UI:N) and attack complexity is low (AC:L). Exploitation is limited by the local-only attack vector (AV:L) - it cannot be triggered remotely over the network - and by the requirement that the vulnerable client be present, so endpoints without Forcepoint VPN Client deployed are not exposed regardless of network position. |
| Impact | Risk is moderate-to-high for endpoints where the Forcepoint VPN Client is deployed: CVSS 4.0 base of 8.5 reflects local attack vector (AV:L), low complexity (AC:L), low privileges required (PR:L), no user interaction (UI:N), and full host impact, which is a realistic LPE profile for a privileged endpoint agent. No EPSS score, KEV listing, or public POC was supplied in the intelligence, so this is not a mass-exploitation candidate today - it is more relevant to insider-threat, malware post-compromise, and red-team scenarios where SYSTEM is the goal after an initial foothold. The advisory originated from Forcepoint PSIRT, suggesting coordinated disclosure rather than in-the-wild discovery; however, absence of public exploit code does not preclude private weaponization given how attractive an LPE in a security-product agent is for adversaries chaining out of low-privilege footholds. |
| Exploit ScenarioDerived | An attacker who has already obtained a standard Windows user session - through phishing, a stolen password, or a separate browser exploit - invokes a crafted interaction with the privileged Forcepoint VPN Client component (e.g., a service, scheduled task, or IPC endpoint) to coerce it into running attacker-controlled code as SYSTEM. The result is full host takeover, allowing credential theft via LSASS, persistence installation, and lateral movement from a previously unprivileged foothold. No public exploit identified at time of analysis, but CWE-250 LPEs in endpoint agents are routinely reverse-engineered from patch diffs. |
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Alert meAnalysisAIv1 – Jun 04, 2026
Local privilege escalation in Forcepoint VPN Client for Windows versions 6.11.3 and prior allows an authenticated low-privileged local user to elevate to SYSTEM. The flaw stems from execution with unnecessary privileges (CWE-250) and carries a CVSS 4.0 score of 8.5, but no public exploit identified at time of analysis. The vulnerability was reported and disclosed by Forcepoint PSIRT itself rather than a third party.
RemediationAI
Patch available per vendor advisory - upgrade Forcepoint VPN Client for Windows to a version released after 6.11.3 as directed in the Forcepoint Security Advisory at https://support.forcepoint.com/s/article/Security-Advisory-Local-Privilege-Escalation-in-VPN-Client-for-Windows; the advisory should be consulted for the exact fixed build number since it was not enumerated in the provided data. Until patching is complete, compensating controls include restricting interactive logon on endpoints that run the VPN client to trusted users only (which limits who can stage a local exploit but does not help against malware-initiated abuse), enforcing application allow-listing via WDAC or AppLocker to block unsigned helper binaries that an LPE chain may rely on, and monitoring EDR for suspicious child processes spawned by the Forcepoint VPN service or unexpected writes into its install directory; note that uninstalling or stopping the client service eliminates the vulnerability but also removes VPN connectivity, which is rarely acceptable for remote workers.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
Forcepoint VPN Client is the Windows endpoint agent that establishes IPsec/SSL tunnels to Forcepoint NGFW/Sidewinder gateways and runs persistent privileged services to manage network adapters, routing, and policy enforcement. The CWE-250 classification (Execution with Unnecessary Privileges) indicates that a SYSTEM-level component of the client performs operations on behalf of the logged-in user without sufficiently dropping or restricting privileges - common patterns include privileged services that load user-controlled files, expose insecure named pipes/IPC, invoke binaries from writable locations, or honor user-supplied paths. The scope-unchanged CVSS vector confirms the elevation is confined to the local Windows host but yields full Confidentiality, Integrity, and Availability impact (VC:H/VI:H/VA:H) consistent with NT AUTHORITY\SYSTEM compromise.
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Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Primary rating from Vendor (forcepoint) · only source for this CVE.
CVSS VectorVendor: forcepoint
DescriptionCVE.org
A local privilege escalation vulnerability exists in Forcepoint VPN Client that allows a local non-administrative user to escalate privileges to SYSTEM. This issue affects VPN Client for Windows: versions 6.11.3 and prior.
Executive ViewAI
Forcepoint VPN Client for Windows (versions 6.11.3 and earlier) contains a local privilege escalation vulnerability allowing authenticated users with low privileges to escalate to SYSTEM-level access. Any endpoint where the vulnerable VPN client is installed faces immediate risk-a compromised low-level user account or contractor access enables full system takeover without additional exploitation. With no patch currently available, organizations must implement interim controls or risk endpoint compromise across their entire VPN-reliant user base.
No vendor-released patch identified at time of analysis. Interim mitigations: restrict local user login rights and enforce centralized access via Remote Desktop or VPN gateway only; implement application whitelisting for Forcepoint VPN Client; enable Windows Event Log monitoring for privilege escalation attempts; deploy Group Policy restrictions limiting VPN client execution context; segment network architecture to isolate vulnerable client endpoints; require multi-factor authentication for all local and remote access; evaluate alternative VPN vendors with active security patch support.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.
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