Citrix NetScaler security snafus get even worse amid more 0-day reports
It only affects NetScaler ADC and Gateway appliances configured as a SAML (Security Assertion Markup Language) service provider or identity provider, used for single sign-on authentication. “Security teams should prioritize appliances configured as a Gateway or AAA virtual server with SAML authentication enabled, and affected organizations should apply the fixed build or Citrix’s interim mitigation if an immediate upgrade is not possible.”® security citrix zero-day netscaler
- ▪It only affects NetScaler ADC and Gateway appliances configured as a SAML (Security Assertion Markup Language) service provider or identity provider, used for single sign-on authentication.
- ▪“Security teams should prioritize appliances configured as a Gateway or AAA virtual server with SAML authentication enabled, and affected organizations should apply the fixed build or Citrix’s interim mitigation if an immediate upgrade is n
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| Original publisher | The Register |
| Canonical URL | https://www.theregister.com/security/2026/10/05/citrix-netscaler-security-snafus-get-even-worse-amid-more-0-day-reports/5301232 |
| Publication time | Mon, 05 Oct 2026 23:18:48 +0200 |
| Retrieval time | 2026-10-06T00:08:16.331Z |
| Last seen | 2026-10-06T00:08:16.331Z |
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| Cluster | 5GssRw6n1jGy · 1 stories |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
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Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
(function() { let windowUrl = window.location.href; windowUrl = windowUrl.substring(windowUrl.indexOf('?') + 1); let messageElement = document.querySelector('.shareableMessage'); if (windowUrl && windowUrl.includes('code') && windowUrl.includes('expires')) { messageElement.style.display = 'block'; } })(); security Citrix NetScaler security snafus get even worse amid more 0-day reports The new vuln, CVE-2026-88779, is a memory overflow bug that leads to denial of service Jessica Lyons Jessica Lyons Cybersecurity Editor Published mon 5 Oct 2026 // 22:18 UTC READ MORE Fortinet sounds the alarm over actively exploited FortiMail zero-day 3 days ago AI agents hacked the hackers, stealing email addresses from security research org 3 days ago Custom malware used in Citrix 0-day attacks targeting…
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