CVE-2026-79964 Cross-site scripting in Secure Connect Gateway 5.0 - Appliance

Medium 5.3 Published 9 Sep 2026 Updated 9 Sep 2026

Unauthenticated remote attackers can exploit improper neutralization to launch phishing attacks against Dell Secure Connect Gateway users.

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-2026-79964?

CVE-2026-79964 is a medium-severity cross-site scripting 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 Improper Neutralization of Escape, Meta, or Control Sequences vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to launch of phishing attacks.

Weakness: CWE-116

Which versions are affected by CVE-2026-79964?

It affects 1 product.

Products include Dell Secure Connect Gateway.

How do I fix CVE-2026-79964?

No fix has been published for CVE-2026-79964 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-79964 being exploited?

There is no known exploitation of CVE-2026-79964 in the wild and no public exploit code.

All Dell Secure Connect Gateway vulnerabilities

Sources

Also known as GHSA-829q-52g2-j9c3.