CVE-2026-79730 Dell CVE debrief

Who should care

System administrators and security teams responsible for Dell SCG systems, especially those with remote access enabled, should review and apply vendor patches, restrict remote access, and monitor systems for potential attacks. They should also verify the affected scope and apply compensating controls.

Why it matters

CVE-2026-79730 is a medium-severity vulnerability in Dell Secure Connect Gateway that could lead to denial of service attacks if exploited. System administrators and security teams should review and apply vendor patches, restrict remote access, and monitor systems for potential attacks.

• Potential denial of service attacks against Dell SCG systems
• Need to verify and apply vendor patches for vulnerable versions
• Importance of restricting remote access to Dell SCG systems
• Monitoring for potential exploitation attempts

Technical summary

Dell Secure Connect Gateway (SCG) versions prior to 5.36.00.16 (virtual) and 5.36.00.00 (application) contain 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. The vulnerability exists in the SCG's handling of concurrent requests, allowing an attacker to manipulate the system state. The TOCTOU vulnerability can be exploited by an attacker to bypass security checks and gain unauthorized access to the system.

Defensive priority

Medium priority for remote access systems

Recommended defensive actions

• Review and apply vendor patches for Dell SCG versions prior to 5.36.00.16 (virtual) and 5.36.00.00 (application)
• Restrict remote access to Dell SCG systems
• Monitor Dell SCG systems for potential denial of service attacks
• Verify the integrity of the system and apply compensating controls
• Conduct a thorough review of the system's exposure
• Perform asset inventory and track exceptions
• Consider implementing additional security measures

Evidence notes

Official CVE Program record and NIST NVD detail page confirm TOCTOU vulnerability in Dell SCG. Vendor advisory provides additional context. The CVE record was published on 2026-09-09T12:17:14.380Z and has not been modified since then. The vulnerability affects Dell SCG versions prior to 5.36.00.16 (virtual) and 5.36.00.00 (application). Defenders should verify the affected scope and apply vendor patches.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.