CVE-2026-79973: Dell Secure Connect Gateway race condition in multithreaded context

CVE-2026-79973 · Severity: medium · CVSS 6.3 · Published 2026-09-09

Dell Secure Connect Gateway (SCG) is a network appliance and application used for secure remote access and connectivity. A race condition vulnerability in the multithreaded components allows a remote attacker with low privileges to cause a denial of service by exploiting unsynchronized access to shared data, disrupting availability of the gateway for legitimate users.

Technologies: Dell Secure Connect Gateway 5.0 Appliance, Dell Secure Connect Gateway 5.0 Application. Vendors: Dell.

Quick answers

Is CVE-2026-79973 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-79973 being exploited in the wild.
How severe is CVE-2026-79973?
Medium severity, with a CVSS score of 6.3, published 9 September 2026.
Which products and versions are affected?
Dell Secure Connect Gateway 5.0 Appliance prior to 5.36.00.16; Dell Secure Connect Gateway 5.0 Application prior to 5.36.00.00.
Is there a fix for CVE-2026-79973?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-79973 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-79973?
Check whether you run Dell Secure Connect Gateway 5.0 Appliance or Dell Secure Connect Gateway 5.0 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

This vulnerability is a race condition (CWE-366: Unsynchronized Access to Shared Data in a Multithreaded Context) affecting Dell SCG 5.0 components. The root cause is improper synchronization of shared data structures accessed by multiple threads, allowing concurrent access without proper locking mechanisms. A low-privileged remote attacker can exploit this by sending specially crafted requests that trigger unsynchronized data access, causing a denial of service condition. The vulnerability requires network reachability and low-privilege credentials. Patches are available in SCG 5.0 Appliance version 5.36.00.16 and SCG 5.0 Application version 5.36.00.00 or later.

Affected products

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

Timeline

  • 2026-09-09: disclosed

References

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