Beyond the patch: Protecting your NetScaler gateway against future vulnerabilities

CVE-2026-88771 lets attackers run commands on NetScaler Gateway before anyone signs in.

The short version

• Patching takes time most teams don't have, so the sign-in decision has to move in front of the vulnerable code.
• The recent disclosure of a major vulnerability in Citrix NetScaler pointed to a widespread weak point: a login page is an attack surface that can be used to compromise and access an application server.
• Indeed, the disclosures included an actively exploited flaw that allowed attackers to execute commands on affected gateways without signing in.

What happened

As with any emergency patch, admins had to weigh cutting off or disrupting their users’ access with the risk of delaying a critical security update. If you’re a NetScaler customer and you haven’t patched your instance, stop reading and go do that.

Why it matters

Once you’ve finished the patch, we’ll explore how to avoid a future fire drill by laying additional security controls.

Summary by Nerd News Network. Read the full article at Cloudflare Blog via the links above and below.