EUVD-2026-74828
GHSA-2vxx-6j6v-p885
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
MITM network positioning requirement justifies AC:H; no authentication needed (PR:N); successful cert-bypass yields full channel confidentiality and integrity compromise with negligible availability impact.
Primary rating from Vendor (dell).
CVSS VectorVendor: dell
Lifecycle Timeline
3DescriptionCVE.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 unauthorized access.
AnalysisAI
Improper certificate validation in Dell Secure Connect Gateway (SCG) 5.0 allows an unauthenticated network-positioned attacker to conduct man-in-the-middle attacks against both the Appliance (prior to 5.36.00.16) and Application (prior to 5.36.00.00) deployment forms, intercepting and potentially tampering with encrypted remote-support communications to achieve unauthorized access. Dell confirmed the vulnerability under advisory DSA-2026-382 with a CVSS 7.7 (High) rating; the AC:H metric reflects the MITM positioning prerequisite, which is the primary exploitation barrier. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to establish a man-in-the-middle network position between the Dell SCG deployment and the remote endpoints it communicates with, achievable via ARP cache poisoning, DNS hijacking, or control of an intermediate network device (router, switch, proxy). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.7 vector (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L) is internally consistent and credible for a CWE-295 MITM vulnerability. … 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 Secure Connect Gateway 5.0 Appliance to version 5.36.00.16 or later, and Dell Secure Connect Gateway 5.0 Application to version 5.36.00.00 or later, as directed by Dell advisory DSA-2026-382 at https://www.dell.com/support/kbdoc/en-in/000503426/. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: identify and document all Dell SCG 5.0 deployments (Appliance and Application forms); implement immediate network restrictions confining remote-support traffic to explicitly trusted source IP ranges and isolated network segments. …
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Same weakness CWE-295 – Improper Certificate Validation
View allSame technique Authentication Bypass
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External POC / Exploit Code
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