CVE-2026-80135 Security feature bypass in Secure Connect Gateway 5.0 - Appliance

High 7.5 Published 7 Sep 2026 Updated 9 Sep 2026

Unauthenticated remote attackers can bypass protection mechanisms in Dell Secure Connect Gateway due to improper exception handling.

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-2026-80135?

CVE-2026-80135 is a high-severity vulnerability in Dell Secure Connect Gateway, published on 7 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 Improper Check or Handling of Exceptional Conditions vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to protection mechanism bypass.

Weakness: CWE-703

Which versions are affected by CVE-2026-80135?

It affects 1 product.

Products include Dell Secure Connect Gateway.

How do I fix CVE-2026-80135?

No fix has been published for CVE-2026-80135 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-80135 being exploited?

There is no known exploitation of CVE-2026-80135 in the wild and no public exploit code.

All Dell Secure Connect Gateway vulnerabilities

Sources

Also known as GHSA-cqwg-qrpg-q555.