CVE-2026-80172 Auth bypass in Secure Connect Gateway 5.0 - Appliance

Critical 9.8 Published 9 Sep 2026 Updated 11 Sep 2026

Unauthenticated attackers can reuse captured requests to gain admin access due to missing nonce validation, requiring an upgrade.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-80172?

CVE-2026-80172 is a critical authentication bypass vulnerability in Dell Secure Connect Gateway, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, 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 Insufficient Verification of Data Authenticity vulnerability. An unauthenticated attacker with remote access could exploit this, leading to unauthorized access. This vulnerability is considered critical as an unauthenticated attacker can repeatedly reuse a captured request to generate ADMIN access and refresh tokens. Since there is no nonce validation or time limit on requests, the attack can be performed indefinitely. Dell recommends customers to upgrade at the earliest opportunity

Weakness: CWE-345

Which versions are affected by CVE-2026-80172?

It affects 1 product.

Products include Dell Secure Connect Gateway.

How do I fix CVE-2026-80172?

No fix has been published for CVE-2026-80172 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-80172 being exploited?

There is no known exploitation of CVE-2026-80172 in the wild and no public exploit code.

All Dell Secure Connect Gateway vulnerabilities

Sources

Also known as GHSA-f8g2-6jhm-qr64.