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Forcepoint Security Engine CVE-2026-12974

| EUVDEUVD-2026-85292 HIGH
Improper Validation of Specified Quantity in Input (CWE-1284)
2026-09-23 forcepoint GHSA-6gj2-8x4x-4xwr
7.9
CVSS 4.0 · Vendor: forcepoint
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Severity by source

Vendor (forcepoint) PRIMARY
7.9 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
9.3 CRITICAL

Remote, unauthenticated, low-complexity policy bypass; scope change (S:C) because the NGFW is unharmed while protected downstream systems are exposed, with integrity of enforcement the primary impact.

3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N

Primary rating from Vendor (forcepoint).

CVSS VectorVendor: forcepoint

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

4
Metadata Corrected
Sep 23, 2026 - 14:40 vuln.today
tag: Firewall added
Metadata Corrected
Sep 23, 2026 - 14:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 23, 2026 - 14:08 vuln.today
CVE Published
Sep 23, 2026 - 13:27 cve.org
HIGH 7.9

DescriptionCVE.org

A Security Policy Bypass vulnerability exists in Forcepoint Security Engine (NGFW).

This issue affects Forcepoint Security Engine (NGFW): from 7.1.0 through 7.1.13, from 7.3.0 through 7.3.1, 7.3.3, from 7.4.0 through 7.4.1, and 7.5.0.

AnalysisAI

Security policy bypass in Forcepoint Security Engine (NGFW) versions 7.1.0 through 7.1.13, 7.3.0 through 7.3.1, 7.3.3, 7.4.0 through 7.4.1, and 7.5.0 allows unauthenticated network attackers to defeat the enforcement policy the appliance is supposed to apply to traffic passing through it. Because the appliance itself is not the target, impact falls on downstream systems that the NGFW is meant to protect - an attacker who exploits the flaw can make traffic the policy should block appear permitted, with high integrity impact on those subsequent systems (scope-changed). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires the target to be a Forcepoint Security Engine (NGFW) running an affected version (7.1.0 through 7.1.13, 7.3.0 through 7.3.1, 7.3.3, 7.4.0 through 7.4.1, or 7.5.0) and deployed as an enforcement point with a security policy the bypass can defeat - the impact lands on systems the NGFW is meant to protect, not the appliance itself (vulnerable-system impact is N; only subsequent-system impact is H). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuine priority signal from a network-security appliance vendor, but several data points must be weighed carefully. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No fixed version is specified in the provided intelligence, so the first action is to retrieve the exact patched release from Forcepoint's advisory at https://support.forcepoint.com/s/article/Security-Advisory-Security-Policy-Bypass-in-Forcepoint-Security-Engine-NGFW-CVE-2026-12974 and confirm with vendor support whether an upgrade path from 7.1.x, 7.3.x, 7.4.x, or 7.5.0 is available; until that is confirmed, treat the patch status as unverified rather than assuming a fix exists. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all Forcepoint Security Engine (NGFW) appliances and confirm which run affected versions 7.1.0 through 7.1.13, 7.3.0 through 7.3.1, 7.3.3, 7.4.0 through 7.4.1, or 7.5.0, and identify which are enforcing policies protecting downstream systems; contact Forcepoint support for interim guidance because no vendor-released patch is identified at time of analysis. …

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CVE-2026-12974 vulnerability details – vuln.today

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