CVE-2026-79639 Security feature bypass in Secure Connect Gateway 5.0 - Appliance

High 7.6 Published 7 Sep 2026 Updated 8 Sep 2026

An unauthenticated remote attacker can bypass certificate validation to gain unauthorized access to Dell Secure Connect Gateway.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-79639?

CVE-2026-79639 is a high-severity vulnerability in Dell Secure Connect Gateway, published on 7 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Certificate Validation vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access.

Weakness: CWE-295

Which versions are affected by CVE-2026-79639?

It affects 1 product.

Products include Dell Secure Connect Gateway.

How do I fix CVE-2026-79639?

No fix has been published for CVE-2026-79639 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-79639 being exploited?

There is no known exploitation of CVE-2026-79639 in the wild and no public exploit code.

All Dell Secure Connect Gateway vulnerabilities

Sources

Also known as GHSA-84x5-255h-vwhm.