Critical NetScaler Vulnerability Exploited in Attacks 2026-09-10 at 15:20 By Ionut Arghire Tracked as CVE-2026-19490, the authentication bypass flaw has been exploited in the wild since at least September 3. The post Critical NetScaler Vulnerability Exploited in Attacks appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original Source
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Previously patched Citrix NetScaler flaw exploited in the wild (CVE-2026-8452) 2026-08-27 at 12:58 By Sinisa Markovic CISA added six new vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, including a previously patched Citrix NetScaler ADC and Gateway flaw, tracked as CVE-2026-8452, that is being exploited in the wild. The agency published the alert on August […]
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Citrix urges customers to fix critical NetScaler authentication bypass (CVE-2026-19490) 2026-08-21 at 10:55 By Sinisa Markovic Citrix has patched two vulnerabilities in NetScaler ADC and NetScaler Gateway, including a critical authentication bypass flaw tracked as CVE-2026-19490, and is urging customers to upgrade affected appliances as soon as possible. “We strongly recommend that customers review the […]
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Exploitation of Fresh Citrix NetScaler Vulnerability Begins 2026-03-30 at 12:32 By Ionut Arghire The critical-severity flaw leaks application memory and can be exploited to obtain authenticated administrative session IDs. The post Exploitation of Fresh Citrix NetScaler Vulnerability Begins appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original Source
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Critical NetScaler ADC, Gateway flaw may soon be exploited (CVE-2026-3055) 2026-03-24 at 16:13 By Zeljka Zorz Citrix has fixed two vulnerabilities in NetScaler ADC and NetScaler Gateway, with the more serious flaw (CVE-2026-3055) potentially allowing attackers to extract active session tokens from the memory of affected devices. Anil Shetty, senior VP of Engineering with Cloud […]
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NetScaler ADC/Gateway zero-day exploited by attackers (CVE-2025-7775) 2025-08-26 at 16:35 By Zeljka Zorz Three new vulnerabilities affecting (Citrix) NetScaler application delivery controller (ADC) and Gateway devices have been made public, one of which (CVE-2025-7775) has been targeted in zero-day attacks. “Exploits of CVE-2025-7775 on unmitigated appliances have been observed,” Citrix has confirmed, and released security […]
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Netscaler vulnerability was exploited as zero-day for nearly two months (CVE-2025-6543) 2025-08-12 at 17:51 By Zeljka Zorz FortiGuard Labs has reported a dramatic spike in exploitation attempts targeting Citrix Bleed 2, a critical buffer over‑read flaw (CVE‑2025‑5777) affecting Citrix NetScaler ADC (Application Delivery Controller) and Gateway devices. Since July 28, 2025, they have detected over 6,000 exploitation […]
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Check for CitrixBleed 2 exploitation even if you patched quickly! (CVE-2025-5777) 2025-07-08 at 18:32 By Zeljka Zorz With PoC exploits for CVE-2025-5777 (aka CitrixBleed 2) now public and reports of active exploitation of the flaw since mid-June, you should check whether your Citrix NetScaler ADC and/or Gateway instances have been probed and compromised by attackers. […]
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CitrixBleed 2 might be actively exploited (CVE-2025-5777) 2025-06-30 at 15:47 By Zeljka Zorz While Citrix has observed some instances where CVE-2025-6543 has been exploited on vulnerable NetScaler networking appliances, the company still says that they don’t have evidence of exploitation for CVE-2025-5349 or CVE-2025-5777, both of which have been patched earlier this month. CVE-2025-5777, in […]
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Evidence Suggests Exploitation of CitrixBleed 2 Vulnerability 2025-06-27 at 12:13 By Eduard Kovacs The Citrix NetScaler vulnerability tracked as CitrixBleed 2 and CVE-2025–5777 may be exploited in the wild for initial access. The post Evidence Suggests Exploitation of CitrixBleed 2 Vulnerability appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original Source
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Critical Citrix NetScaler Flaw Exploited as Zero-Day 2025-06-26 at 10:17 By Ionut Arghire Citrix has released patches for a critical vulnerability in NetScaler ADC and NetScaler Gateway exploited as a zero-day. The post Critical Citrix NetScaler Flaw Exploited as Zero-Day appeared first on SecurityWeek. This article is an excerpt from SecurityWeek View Original Source
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Critical Citrix NetScaler bug fixed, upgrade ASAP! (CVE-2025-5777) 2025-06-23 at 14:14 By Zeljka Zorz Citrix has fixed a critical vulnerability (CVE-2025-5777) in NetScaler ADC and NetScaler Gateway reminiscent of the infamous and widely exploited CitrixBleed flaw. The vulnerabilities have been privately disclosed and there is no indication that they are under active exploitation. Nevertheless, the […]
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Citrix Patches Critical NetScaler Console Vulnerability 2024-07-10 at 16:46 By Ionut Arghire Citrix rolls out patches for multiple security vulnerabilities, including critical and high-severity issues in the NetScaler product line. The post Citrix Patches Critical NetScaler Console Vulnerability appeared first on SecurityWeek. This article is an excerpt from SecurityWeek RSS Feed View Original Source
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How LockBit used Citrix Bleed to breach Boeing and other targets 22/11/2023 at 16:47 By Zeljka Zorz CVE-2023-4966, aka “Citrix Bleed”, has been exploited by LockBit 3.0 affiliates to breach Boeing’s parts and distribution business, and “other trusted third parties have observed similar activity impacting their organization,” cybersecurity and law enforcement officials have confirmed on […]
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Active Exploitation of Big-IP and Citrix vulnerabilities observed by Cyble Global Sensor Intelligence Network 08/11/2023 at 16:02 By cybleinc Cyble’s Global Sensors capture multiple exploit attempts targeting vulnerable BIG-IP and Citrix NetScaler instances. The post Active Exploitation of Big-IP and Citrix vulnerabilities observed by Cyble Global Sensor Intelligence Network appeared first on Cyble. This article […]
Citrix Bleed: Mass exploitation in progress (CVE-2023-4966) 30/10/2023 at 14:46 By Zeljka Zorz CVE-2023-4966, aka “Citrix Bleed”, a critical information disclosure vulnerability affecting Citrix NetScaler ADC/Gateway devices, is being massively exploited by threat actors. According to security researcher Kevin Beaumont’s cybersecurity industry sources, one ransomware group has already distributed a Python script to automate the […]
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Why zero trust delivers even more resilience than you think 10/10/2023 at 08:04 By Help Net Security Ten years ago, zero trust was an exciting, innovative perspective shift that security experts were excited to explore; today, it’s more likely to be framed as an inevitable trend than as a mere option on the security menu. […]
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