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Secure Connect Gateway CVE-2026-79967

| EUVDEUVD-2026-74779 MEDIUM
Improper Certificate Validation (CWE-295)
2026-09-09 dell GHSA-4f6r-fq28-v5m3
Authentication Bypass Dell Secure Connect Gateway 5 0 Appliance Secure Connect Gateway 5 0 Application
5.6
CVSS 3.1 · Vendor: dell
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Severity by source

Vendor (dell) PRIMARY
5.6 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
vuln.today AI
5.6 MEDIUM

Agrees with vendor vector: MITM positioning drives AC:H; no auth needed against SCG (PR:N); limited C/I/A due to session-layer interception scope.

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

Primary rating from Vendor (dell).

CVSS VectorVendor: dell

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

2
Analysis Generated
Sep 09, 2026 - 09:37 vuln.today
Patch available
Sep 09, 2026 - 09:18 EUVD

DescriptionCVE.org

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to protection mechanism bypass.

AnalysisAI

Improper certificate validation in Dell Secure Connect Gateway (SCG) 5.0 allows a remote, unauthenticated attacker in a network-adjacent MITM position to bypass TLS protection mechanisms, potentially intercepting and altering communications between the SCG appliance or application and remote endpoints. Both deployment forms are affected - the physical/virtual appliance (versions prior to 5.36.00.16) and the software application (versions prior to 5.36.00.00). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to be positioned as a man-in-the-middle on the network path between the Dell SCG (appliance or application) and its remote communication endpoint - this is the AC:H condition reflected in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Real-world risk is moderate and operationally constrained. … 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 Upgrade Dell SCG 5.0 Application to version 5.36.00.00 or later and Dell SCG 5.0 Appliance to version 5.36.00.16 or later, as specified in Dell advisory DSA-2026-382 (https://www.dell.com/support/kbdoc/en-in/000503426/dsa-2026-382-security-update-for-dell-secure-connect-gateway-virtual-edition-multiple-vulnerabilities). … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-79967 vulnerability details – vuln.today
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