<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>RuntimeRebel — #Citrix NetScaler</title><description>Cybersecurity articles tagged #Citrix NetScaler on RuntimeRebel.</description><link>https://runtimerebel.com</link><item><title>CVE-2026-88779: NetScaler DoS Exploit – Patch Now</title><link>https://runtimerebel.com/blog/cve-2026-88779-netscaler-dos-exploit-patch-now</link><guid isPermaLink="true">https://runtimerebel.com/blog/cve-2026-88779-netscaler-dos-exploit-patch-now</guid><description>CISA confirms active exploitation of CVE-2026-88779 in Citrix NetScaler ADC and Gateway, leading to Denial of Service. Immediate action required.</description><pubDate>Mon, 05 Oct 2026 03:04:24 GMT</pubDate><category>CVE-2026-88779</category><category>Citrix NetScaler</category><category>Denial of Service</category><category>CISA KEV</category><category>Network Security</category></item><item><title>Critical Citrix NetScaler Zero-Days: CVE-2026-88772 &amp; CVE-2026-88771</title><link>https://runtimerebel.com/blog/critical-citrix-netscaler-zero-days-cve-2026-88772-cve-2026-88771</link><guid isPermaLink="true">https://runtimerebel.com/blog/critical-citrix-netscaler-zero-days-cve-2026-88772-cve-2026-88771</guid><description>Mandiant and Google identified active zero-day exploitation (CVE-2026-88772, CVE-2026-88771) in Citrix NetScaler ADC and Gateway, leading to root access.</description><pubDate>Thu, 01 Oct 2026 03:14:07 GMT</pubDate><category>Citrix NetScaler</category><category>Zero-Day</category><category>Web Shells</category><category>Authentication Bypass</category><category>CVE-2026-88772</category></item><item><title>CVE-2026-19490: Citrix NetScaler Auth Bypass Under Attack</title><link>https://runtimerebel.com/blog/cve-2026-19490-citrix-netscaler-auth-bypass-under-attack</link><guid isPermaLink="true">https://runtimerebel.com/blog/cve-2026-19490-citrix-netscaler-auth-bypass-under-attack</guid><description>Critical Citrix NetScaler authentication bypass (CVE-2026-19490) is actively exploited in the wild, allowing remote unprivileged access.</description><pubDate>Sat, 05 Sep 2026 02:00:06 GMT</pubDate><category>CVE-2026-19490</category><category>Citrix NetScaler</category><category>Authentication Bypass</category><category>Zero-Day</category><category>Vulnerability Exploitation</category></item><item><title>NetScaler Memory Disclosure Flaw Under Active Exploitation</title><link>https://runtimerebel.com/blog/netscaler-memory-disclosure-flaw-under-active-exploitation</link><guid isPermaLink="true">https://runtimerebel.com/blog/netscaler-memory-disclosure-flaw-under-active-exploitation</guid><description>Attackers are actively exploiting a new memory disclosure flaw in Citrix NetScaler products, rapidly weaponizing a public proof-of-concept.</description><pubDate>Mon, 06 Jul 2026 21:41:04 GMT</pubDate><category>Citrix NetScaler</category><category>Memory Disclosure</category><category>Active Exploitation</category><category>PoC</category></item><item><title>CVE-2025-5777: Anubis Ransomware Exploits Citrix Bleed 2</title><link>https://runtimerebel.com/blog/cve-2025-5777-anubis-ransomware-exploits-citrix-bleed-2</link><guid isPermaLink="true">https://runtimerebel.com/blog/cve-2025-5777-anubis-ransomware-exploits-citrix-bleed-2</guid><description>Anubis ransomware affiliates exploit Citrix Bleed 2 (CVE-2025-5777) and BYOVD techniques to breach networks via RMM tools and supply chain credentials.</description><pubDate>Fri, 03 Jul 2026 07:24:55 GMT</pubDate><category>CVE-2025-5777</category><category>Anubis Ransomware</category><category>Citrix NetScaler</category><category>BYOVD</category><category>RMM Abuse</category></item><item><title>CVE-2026-3055: Citrix NetScaler Out-of-Bounds Read Under Active Exploitation</title><link>https://runtimerebel.com/blog/cve-2026-3055-citrix-netscaler-out-of-bounds-read-under-active-exploitation</link><guid isPermaLink="true">https://runtimerebel.com/blog/cve-2026-3055-citrix-netscaler-out-of-bounds-read-under-active-exploitation</guid><description>CISA adds CVE-2026-3055, an actively exploited Citrix NetScaler Out-of-Bounds Read vulnerability, to its KEV Catalog, urging immediate remediation.</description><pubDate>Mon, 30 Mar 2026 20:19:34 GMT</pubDate><category>CVE-2026-3055</category><category>Citrix NetScaler</category><category>Out of Bounds Read</category><category>CISA KEV</category><category>Active Exploitation</category></item><item><title>Citrix NetScaler CVE-2026-3055 Memory Overread — Mitigation Guide</title><link>https://runtimerebel.com/blog/citrix-netscaler-cve-2026-3055-memory-overread-mitigation-guide</link><guid isPermaLink="true">https://runtimerebel.com/blog/citrix-netscaler-cve-2026-3055-memory-overread-mitigation-guide</guid><description>Attackers are actively scanning for CVE-2026-3055, a CVSS 9.3 memory overread flaw in Citrix NetScaler ADC and Gateway. Patch vulnerable instances immediately.</description><pubDate>Sat, 28 Mar 2026 12:20:11 GMT</pubDate><category>CVE-2026-3055</category><category>Citrix NetScaler</category><category>ADC</category><category>Gateway</category><category>Memory Overread</category><category>Information Disclosure</category></item><item><title>Citrix NetScaler CVE-2026-3055: Critical Data Leak Patch Guidance</title><link>https://runtimerebel.com/blog/citrix-netscaler-cve-2026-3055-critical-data-leak-patch-guidance</link><guid isPermaLink="true">https://runtimerebel.com/blog/citrix-netscaler-cve-2026-3055-critical-data-leak-patch-guidance</guid><description>Citrix releases critical security updates for NetScaler ADC and Gateway to address CVE-2026-3055, an unauthenticated memory overread and data leak flaw.</description><pubDate>Tue, 24 Mar 2026 08:21:05 GMT</pubDate><category>Citrix NetScaler</category><category>CVE-2026-3055</category><category>CVE-2026-4368</category><category>Memory Overread</category><category>Data Leak</category></item></channel></rss>