Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessIdentify network-reachable SCG interface
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DeliverySend high-volume concurrent unauthenticated requests
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ExploitRace condition fires on shared resource
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ExecutionService enters inconsistent or crashed state
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ImpactRemote support capability denied
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Unsynchronized access to shared data
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| Exploitation Conditions | Exploitation requires unauthenticated network access to a Dell SCG 5.0 Appliance (prior to 5.36.00.16) or Application (prior to 5.36.00.00) over a routable network path. The CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates no authentication or user interaction is needed, and no special non-default configuration is described as a prerequisite. The primary limiting factor is deployment context: SCG management interfaces are typically placed within enterprise-controlled networks or behind perimeter firewalls, which reduces exposure compared to fully internet-facing services. Additionally, the race condition nature of the flaw means reliable triggering may require coordinated concurrent requests, introducing some practical exploitation complexity not reflected in the AC:L rating. |
| Impact | The CVSS base score of 5.3 (Medium) and the absence of any CISA KEV listing or publicly available exploit code place this vulnerability in the planned-remediation tier rather than emergency-response. The attack vector is network-accessible and requires no authentication per the CVSS vector (AV:N/AC:L/PR:N/UI:N), making the service theoretically reachable by any network-adjacent attacker - however, SCG management interfaces are characteristically deployed inside enterprise perimeters or behind access controls, materially reducing exposure. The real-world impact is service disruption affecting remote support and diagnostics functions, not data exfiltration or code execution. A meaningful data quality conflict exists: the vendor-submitted CVSS vector records C:L/I:N/A:N (confidentiality low, no availability impact), which contradicts the described denial-of-service outcome; the availability metric should reflect at least A:L for a DoS-class vulnerability. EPSS data was not provided, and no exploitation telemetry is available. Given these factors, even a mid-sized municipal IT team in legnica maintaining Dell SCG appliances should treat this as a scheduled upgrade rather than a drop-everything incident, prioritizing organizations with internet-facing SCG deployments. |
| Exploit ScenarioDerived | An unauthenticated remote attacker sends a flood of concurrent requests to the Dell SCG interface, exploiting the lack of proper synchronization on a shared resource to trigger a race condition that crashes or hangs the service. No public proof-of-concept code has been identified, and reliable exploitation likely requires precise concurrent timing across multiple simultaneous connections. Successful exploitation would disrupt remote support and diagnostics capabilities for the affected organization. |
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Alert meAnalysisAIv1 – Sep 09, 2026
Race condition in Dell Secure Connect Gateway (SCG) 5.0 allows unauthenticated remote attackers to trigger denial of service against both the Appliance and Application deployment variants by exploiting improper synchronization of shared resources under concurrent access (CWE-567). Affected versions are Appliance prior to 5.36.00.16 and Application prior to 5.36.00.00, with fixes detailed in Dell advisory DSA-2026-382. Notably, the vendor-supplied CVSS 3.1 vector records C:L/A:N, which conflicts with the stated denial-of-service impact - a likely metadata error, as availability impact is the primary concern here. No public exploit code or active exploitation has been confirmed at time of analysis.
RemediationAI
The primary remediation is to upgrade Dell SCG 5.0 Appliance to version 5.36.00.16 or later and Dell SCG 5.0 Application to version 5.36.00.00 or later, as documented in Dell advisory DSA-2026-382 at https://www.dell.com/support/kbdoc/en-in/000503426/dsa-2026-382-security-update-for-dell-secure-connect-gateway-virtual-edition-multiple-vulnerabilities. If immediate patching is not feasible, restricting inbound network access to the SCG interface via firewall ACLs - limiting connections to trusted management subnets and support personnel IP ranges - reduces the attack surface, though this trade-off may limit legitimate remote support operations. No additional vendor-specified workarounds are documented in the available advisory data.
Affected VersionsENISA
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Technical ContextAI · show details
Dell Secure Connect Gateway (SCG) 5.0 is Dell's enterprise remote support and diagnostics platform, available in both Appliance (hardware or virtual) and Application (software) forms. The vulnerability is classified as CWE-567 (Unsynchronized Access to Shared Data in a Multithreaded Context), a race-condition subtype where concurrent threads compete for a shared resource without adequate synchronization primitives such as mutexes, semaphores, or locks. In server-side request-handling contexts, this class of flaw typically manifests when simultaneous inbound requests trigger competing writes or reads on shared state, potentially leaving the service in an inconsistent, deadlocked, or crashed condition. Both SCG deployment variants are affected across the same version boundary, suggesting the flaw resides in shared application-layer code rather than platform-specific components. No CPE identifiers were supplied in the input data.
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Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Vendor describes DoS-only impact, so A:L replaces the erroneous C:L in the supplied vector; no confidentiality or integrity impact is described.
Primary rating from Vendor (emc).
CVSS VectorNVD
Lifecycle Timeline
2DescriptionNVD
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 a Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to denial of service.
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
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
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EUVD-2026-75008
GHSA-9g7f-2c5w-h7h9
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB