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

Source: https://junglewise.ai/threats/cve-2026-79973-dell-secure-connect-gateway-race-condition-in-multithreaded  
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-2026-79973 · 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](https://junglewise.ai/threats/technologies/secure-connect-gateway-5-0-appliance), [Dell Secure Connect Gateway 5.0 Application](https://junglewise.ai/threats/technologies/secure-connect-gateway-5-0-application). Vendors: [Dell](https://junglewise.ai/threats/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

- [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 SCG 5.0 cross-site scripting in alternate XSS syntax](https://junglewise.ai/threats/cve-2026-79946-dell-scg-5-0-cross-site-scripting-in-alternate-xss-syntax)
- [Dell Secure Connect Gateway command injection vulnerability](https://junglewise.ai/threats/cve-2026-79741-dell-secure-connect-gateway-command-injection-vulnerability)
- [Dell Secure Connect Gateway OS command injection](https://junglewise.ai/threats/cve-2026-78484-dell-secure-connect-gateway-os-command-injection)
- [Dell Secure Connect Gateway command injection](https://junglewise.ai/threats/cve-2026-79941-dell-secure-connect-gateway-command-injection)
- [Dell Secure Connect Gateway improper neutralization of escape sequences](https://junglewise.ai/threats/cve-2026-79964-dell-secure-connect-gateway-improper-neutralization-of-escape)