EUVD-2026-74854
GHSA-38j3-mqfh-x878
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Network-reachable, no auth required, but AC:H reflects timing difficulty of TOCTOU; C:L/I:L acknowledged given race condition state ambiguity alongside primary A:L DoS.
Primary rating from Vendor (dell).
CVSS VectorVendor: dell
Lifecycle Timeline
2DescriptionCVE.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 a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to denial of service.
AnalysisAI
Exploitation of a TOCTOU race condition in Dell Secure Connect Gateway (SCG) 5.0 - both the Appliance and Application variants - allows a remote unauthenticated attacker to cause denial of service, with marginal confidentiality and integrity impact as reflected in the CVSS vector (C:L/I:L/A:L). The High Attack Complexity rating (AC:H) indicates reliable exploitation requires precise timing to win the race between the check and use operations. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker requires only network access to the SCG service interface - no authentication or special account privileges are needed (CVSS PR:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 5.6 Medium score is supported by the AC:H modifier, which correctly captures the inherent difficulty of winning a race condition reliably over a network connection - timing jitter and network latency make deterministic exploitation challenging. … 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 | Dell has released patches addressing this vulnerability. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
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Same technique Denial Of Service
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External POC / Exploit Code
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