# CVE-2026-79730: Dell Secure Connect Gateway TOCTOU race condition

Source: https://junglewise.ai/threats/cve-2026-79730-dell-secure-connect-gateway-toctou-race-condition  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-09. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-79730 · Severity: medium · CVSS 5.6 · Published 2026-09-09

Dell Secure Connect Gateway (SCG) is a secure remote access appliance and application used by organizations to protect network connectivity. A timing-based race condition vulnerability allows unauthenticated remote attackers to exploit concurrent operations, potentially causing service disruptions and denial of service on the gateway.

Technologies: [Dell Secure Connect Gateway Appliance](https://junglewise.ai/threats/technologies/secure-connect-gateway-appliance), [Dell Secure Connect Gateway Application](https://junglewise.ai/threats/technologies/secure-connect-gateway-application). Vendors: [Dell](https://junglewise.ai/threats/vendors/dell).

## Quick answers

**Is CVE-2026-79730 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-79730 being exploited in the wild.

**How severe is CVE-2026-79730?** Medium severity, with a CVSS score of 5.6, published 9 September 2026.

**Which products and versions are affected?** Dell Secure Connect Gateway Appliance 5.0 prior to 5.36.00.16; Dell Secure Connect Gateway Application 5.0 prior to 5.36.00.00.

**Is there a fix for CVE-2026-79730?** A patch was published on 2026-09-09: Appliance 5.36.00.16, Application 5.36.00.00 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-79730 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-79730?** Check whether you run Dell Secure Connect Gateway Appliance or Dell Secure Connect Gateway Application at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

CVE-2026-79730 is a Time-of-check Time-of-use (TOCTOU) race condition in Dell SCG 5.0 Appliance (prior to 5.36.00.16) and Application (prior to 5.36.00.00). The vulnerability allows an unauthenticated attacker with network access to exploit a timing gap between a security check and a subsequent operation, leading to denial of service. No authentication is required to trigger the condition, and the attack can be performed remotely over the network. The vulnerability results in availability impact through service disruption. Dell has released patches in versions 5.36.00.16 (Appliance) and 5.36.00.00 (Application).

## Affected products

- Dell Secure Connect Gateway Appliance 5.0 prior to 5.36.00.16
- Dell Secure Connect Gateway Application 5.0 prior to 5.36.00.00

## Timeline

- 2026-09-09: disclosed
- 2026-09-09: patched: Appliance 5.36.00.16, Application 5.36.00.00

## References

- [https://www.dell.com/support/kbdoc/en-in/000503426/dsa-2026-382-security-update-for-dell-secure-connect-gateway-virtual-edition-multiple-vulnerabilities](https://www.dell.com/support/kbdoc/en-in/000503426/dsa-2026-382-security-update-for-dell-secure-connect-gateway-virtual-edition-multiple-vulnerabilities)

## Related threats

- [Dell Secure Connect Gateway OS command injection vulnerability](https://junglewise.ai/threats/cve-2026-79947-dell-secure-connect-gateway-os-command-injection-vulnerability)
- [Dell Secure Connect Gateway OS command injection in local process](https://junglewise.ai/threats/cve-2026-79945-dell-secure-connect-gateway-os-command-injection-in-local-process)
- [Dell Secure Connect Gateway least privilege violation](https://junglewise.ai/threats/cve-2026-79944-dell-secure-connect-gateway-least-privilege-violation)
- [Dell Secure Connect Gateway execution with unnecessary privileges](https://junglewise.ai/threats/cve-2026-79942-dell-secure-connect-gateway-execution-with-unnecessary-privileges)
- [Dell Secure Connect Gateway hard-coded cryptographic key](https://junglewise.ai/threats/cve-2026-79735-dell-secure-connect-gateway-hard-coded-cryptographic-key)