EUVD-2026-74830
GHSA-6g4j-7728-pqqc
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
MITM network positioning required justifies AC:H; unauthenticated (PR:N) with no user interaction; full interception and tampering of communications yields C:H/I:H; no service disruption so A:N.
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 Appliance and Application allows a network-positioned unauthenticated attacker to conduct man-in-the-middle attacks, intercepting and potentially modifying encrypted communications between the SCG and Dell's remote support infrastructure. Affected versions are SCG 5.0 Appliance prior to 5.36.00.16 and SCG 5.0 Application prior to 5.36.00.00, as confirmed by Dell advisory DSA-2026-382. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must occupy a man-in-the-middle network position on the path between the SCG appliance or application and Dell's remote support backend - achievable via ARP poisoning, rogue gateway insertion, DNS hijacking, or compromised upstream routing infrastructure. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N yields a score of 7.4 (High), and the AC:H designation accurately reflects the central prerequisite: the attacker must occupy a man-in-the-middle network position between the SCG and Dell's backend infrastructure. … 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 Appliance to version 5.36.00.16 or later and Dell SCG 5.0 Application to version 5.36.00.00 or later per 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. |
Recommended ActionAI
Within 24 hours, identify all Dell Secure Connect Gateway 5.0 instances (versions prior to Appliance 5.36.00.16 or Application 5.36.00.00) and assess their network exposure; isolate SCG-to-Dell communications from general production traffic if possible. …
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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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