Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessGain MITM position on SCG network path
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DeliveryIntercept SCG outbound TLS handshake
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ExploitPresent forged or invalid certificate
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ExecutionBypass certificate validation check
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ImpactDecrypt and read support channel communications
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V12 - Secure Communication Certificate validation
|
| Exploitation Conditions | Exploitation requires the attacker to achieve a man-in-the-middle (MITM) position on the network path between the Dell Secure Connect Gateway instance and its remote communication endpoints, confirmed by the AC:H metric in the CVSS vector. No authentication is required (PR:N) and no user interaction is needed (UI:N). The key limiting factor is network-level MITM capability, which is not achievable by purely remote opportunistic attackers against properly segmented enterprise networks but is realistic for insiders, attackers with lateral movement access, or those controlling network infrastructure between the appliance and Dell's support backend. Impact is bounded to low confidentiality loss (C:L); integrity and availability are unaffected. Both the Appliance and Application 5.0 deployment modes are vulnerable. |
| Impact | The CVSS 3.7 score (AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N) accurately reflects a limited but real threat: the AC:H metric confirms that successful exploitation requires the attacker to first achieve a man-in-the-middle position on the network path between the SCG instance and Dell's support endpoints, a non-trivial prerequisite that substantially reduces opportunistic risk. Impact is constrained to low confidentiality loss - diagnostic or management metadata - with no integrity or availability impact. No KEV listing exists, no EPSS data was provided, and no public proof-of-concept has been identified, all consistent with a low-urgency vulnerability for most environments. That said, the nature of SCG as a remote support gateway means intercepted communications could expose topology details, credentials, or support session data; even a mid-sized municipal IT team in gdynia would be wise to apply the available patch promptly rather than deprioritize it solely on the basis of the low CVSS score, since MITM capability is achievable by sophisticated insiders or lateral-movement actors. The 'Authentication Bypass' tag in the input metadata is a loose label - CWE-295 describes certificate validation failure, which can facilitate identity spoofing but is more precisely a cryptographic control weakness than a traditional authentication bypass. |
| Exploit ScenarioDerived | An attacker with the ability to intercept traffic on the network path between a Dell SCG 5.0 instance and its Dell support backend - for example, via ARP spoofing on a local segment or a compromised network device - presents a forged TLS certificate that the SCG accepts without proper validation. The attacker then decrypts and reads diagnostic or management data transiting the support channel. No public proof-of-concept has been identified. |
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Alert meAnalysisAIv1 – Sep 09, 2026
Improper certificate validation in Dell Secure Connect Gateway 5.0 (both Appliance and Application variants) exposes organizations to protection mechanism bypass by unauthenticated remote attackers positioned on the network path. Affected are all Appliance versions prior to 5.36.00.16 and all Application versions prior to 5.36.00.00, as confirmed by Dell advisory DSA-2026-382 and EUVD-2026-75026. The CVSS 3.7 Low score reflects high attack complexity - requiring man-in-the-middle positioning - with only limited confidentiality impact; no public exploit or active exploitation has been identified at time of analysis.
RemediationAI
Upgrade Dell Secure Connect Gateway 5.0 Appliance to version 5.36.00.16 or later, and the Application variant to version 5.36.00.00 or later, as directed by 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). As a compensating control pending patching, isolate SCG network traffic to dedicated, trusted network segments with strict routing controls to eliminate attacker MITM positioning opportunities; this directly addresses the AC:H prerequisite. Enabling network-level monitoring for unexpected certificate presentation or TLS anomalies on the SCG communication path can provide detection coverage. Note that network segmentation alone does not fix the underlying validation flaw and should be treated as a temporary measure only.
Affected VersionsENISA
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Technical ContextAI · show details
Dell Secure Connect Gateway (SCG) 5.0 is an enterprise remote support and monitoring platform deployed as either a hardware appliance or a virtual application, facilitating secure communications between on-premises Dell infrastructure and Dell's support backend. CWE-295 (Improper Certificate Validation) indicates the product fails to rigorously validate SSL/TLS certificates during its network communications - specifically, it does not properly check certificate authenticity, chain of trust, or hostname matching, allowing a forged or malformed certificate to be accepted. Two distinct CPE entries are affected: the appliance variant (cpe:2.3:a:dell:secure_connect_gateway_5.0_-_appliance) and the application variant (cpe:2.3:a:dell:secure_connect_gateway_5.0_-_application). Because SCG channels sensitive remote diagnostic and management data to Dell's support infrastructure, weaknesses in certificate validation are particularly significant for the data transiting that channel.
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Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
MITM positioning required (AC:H); no auth needed (PR:N); only diagnostic data exposed in transit (C:L); no integrity or availability impact.
Primary rating from Vendor (dell).
CVSS VectorVendor: dell
Lifecycle Timeline
1DescriptionCVE.org
Dell Secure Connect Gateway (SCG) 5.0 Appliance, versions prior to 5.36.00.xx, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to protection mechanism bypass.
Threat Intelligence Overview
How this decision was reached
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What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Remote code execution in Dell Secure Connect Gateway (SCG) 5.0 allows an unauthenticated remote attacker to escape the i
Unauthorized ADMIN access in Dell Secure Connect Gateway (SCG) 5.0 allows a remote unauthenticated attacker to replay a
Remote command execution in Dell Secure Connect Gateway 5.0 (Appliance versions before 5.36.00.16 and Application versio
Unauthorized remote access to Dell Secure Connect Gateway (SCG) 5.0 is possible because the product fails to properly va
Relative path traversal in Dell Secure Connect Gateway (SCG) 5.0 allows a low-privileged remote attacker to traverse dir
Missing authentication on critical API functions in Dell Secure Connect Gateway (SCG) 5.0 exposes privileged operations
Improper certificate validation in Dell Secure Connect Gateway (SCG) 5.0 allows remote unauthenticated attackers to expl
Relative path traversal in Dell Secure Connect Gateway 5.0 (both Appliance and Application editions) exposes unauthentic
Dell Secure Connect Gateway (SCG) 5.0 exposes a critical management function without any authentication requirement (CWE
OS command injection in Dell Secure Connect Gateway (SCG) 5.0 enables a locally authenticated low-privilege attacker to
OS command injection in Dell Secure Connect Gateway (SCG) 5.0 - both Appliance (prior to 5.36.00.16) and Application (pr
Local privilege escalation in Dell Secure Connect Gateway 5.0 enables a low-privileged authenticated user with local she
EUVD-2026-75026
GHSA-9gq6-686x-r39m
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB