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CVE-2026-79645 – Missing Authentication / Unauthorized Access – Dell Secure Connect Gateway 5.0 (App

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Summary

CVE-2026-79645 is a Missing Authentication for Critical Function vulnerability (CWE-306) affecting Dell Secure Connect Gateway (SCG) 5.0. The flaw allows an unauthenticated, remote attacker to reach a critical function without credentials, gaining unauthorized access to the system. Dell rates the issue High severity with a CVSS v3.1 base score of 8.2.

Technical details

  • Root cause: a critical function in Dell SCG 5.0 is missing an authentication check, per Dell’s own CWE-306 classification.
  • Trigger conditions: no privileges and no user interaction are required to exploit the flaw.
  • Attack vector: network-based, low attack complexity.
  • Impact: unauthorized access to the affected system, with low confidentiality impact and high integrity impact (no availability impact per the CVSS vector).

Affected software

  • Dell Secure Connect Gateway 5.0 – Appliance: versions prior to 5.36.00.16
  • Dell Secure Connect Gateway 5.0 – Application: versions prior to 5.36.00.00

Severity

  • CVSS v3.1 Base Score: 8.2 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Mitigation and recommended actions

  • Immediate: Upgrade Dell Secure Connect Gateway 5.0 Appliance to version 5.36.00.16 or later, and Application to version 5.36.00.00 or later, as published in Dell’s security advisory (DSA-2026-382).
  • If immediate patching is not possible, restrict network access to the Secure Connect Gateway console/management interface until all units are patched.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Raw response body: <base href="/SecureConnectGateway/resx/">
  • Page title: Secure Connect Gateway

References

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How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

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  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
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