Tag: citrix
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Citrix Urges Immediate Patching for Critical NetScaler Vulnerabilities
A critical vulnerability in Citrix’s NetScaler products allows unauthenticated remote attackers to leak information from the appliance’s memory First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/citrix-patch-netscaler/
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Citrix NetScaler critical flaw could leak data, update now
Citrix warns of a critical NetScaler flaw (CVE-2026-3055) that could leak sensitive data; users are urged to apply security updates immediately. Citrix issued security updates for two NetScaler vulnerabilities, including a critical memory overread, tracked as CVE-2026-3055 (CVSS score of 9.3), that allows unauthenticated attackers to leak sensitive data. The flaw CVE-2026-3055 is an insufficient…
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Critical NetScaler ADC, Gateway flaw may soon be exploited (CVE-2026-3055)
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 … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/03/24/netscaler-adc-gateway-cve-2026-3055/
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Citrix Urges Patching Critical NetScaler Flaw Allowing Unauthenticated Data Leaks
Citrix has released security updates to address two vulnerabilities in NetScaler ADC and NetScaler Gateway, including a critical flaw that could be exploited to leak sensitive data from the application.The vulnerabilities are listed below -CVE-2026-3055 (CVSS score: 9.3) – Insufficient input validation leading to memory overreadCVE-2026-4368 (CVSS score: 7.7) – Race condition leading to user…
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ThreatsDay Bulletin: FortiGate RaaS, Citrix Exploits, MCP Abuse, LiveChat Phish & More
ThreatsDay Bulletin is back on The Hacker News, and this week feels off in a familiar way. Nothing loud, nothing breaking everything at once. Just a lot of small things that shouldn’t work anymore but still do.Some of it looks simple, almost sloppy, until you see how well it lands. Other bits feel a little…
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ThreatsDay Bulletin: FortiGate RaaS, Citrix Exploits, MCP Abuse, LiveChat Phish & More
ThreatsDay Bulletin is back on The Hacker News, and this week feels off in a familiar way. Nothing loud, nothing breaking everything at once. Just a lot of small things that shouldn’t work anymore but still do.Some of it looks simple, almost sloppy, until you see how well it lands. Other bits feel a little…
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GreyNoise tracks massive Citrix Gateway recon using 63K+ residential proxies and AWS
GreyNoise spotted a dual-mode Citrix Gateway recon campaign using 63K+ residential proxies and AWS to find login panels and enumerate versions. Between Jan 28 and Feb 2, 2026, GreyNoise tracked a coordinated reconnaissance campaign targeting Citrix ADC and NetScaler Gateways. Attackers used over 63,000 residential proxies to discover login panels, then switched to AWS infrastructure…
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Threat Actors Conduct Widespread Scanning for Exposed Citrix NetScaler Login Pages
A coordinated reconnaissance campaign targeting Citrix ADC (NetScaler) Gateway infrastructure worldwide. The operation used over 63,000 residential proxy IPs and AWS cloud infrastructure to map login panels and enumerate software versions, a clear indicator of pre-exploitation preparation. The scanning activity generated 111,834 sessions from more than 63,000 unique IP addresses, with 79% of traffic specifically…
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Wave of Citrix NetScaler scans use thousands of residential proxies
A coordinated reconnaissance campaign targeting Citrix NetScaler infrastructure over the past week used tens of thousands of residential proxies to discover login panels. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/wave-of-citrix-netscaler-scans-use-thousands-of-residential-proxies/
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Comcast to Pay $117M in Security Breach Settlement
The breach was linked to a vulnerability known as “CitrixBleed,” a flaw affecting Citrix NetScaler Application Delivery Controller and Gateway appliances. The post Comcast to Pay $117M in Security Breach Settlement appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/news-comcast-security-breach-settlement/
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Ransomware gang’s slip-up led to data recovery for 12 US firms
Tags: access, attack, backup, breach, business, citrix, cloud, corporate, cyber, data, data-breach, detection, encryption, endpoint, exploit, finance, group, incident response, infosec, infrastructure, law, linux, network, phishing, powershell, ransom, ransomware, risk, software, spear-phishing, sql, threat, tool, veeam, vulnerabilityscrutinize and audit your backups. If you have a regular backup schedule, is there unexpected or unexplained activity? Von Ramin Mapp notes that crooks are known to time data exfiltration to match corporate off-site backups as a way to hide their work;monitor for encrypted data leaving your environments and see where it goes. Does this…
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Analyse von Darktrace – Salt Typhoon nutzt bekannte Citrix-Schwachstelle für Angriff in Europa
First seen on security-insider.de Jump to article: www.security-insider.de/cyberangriff-europaeisches-telekommunikationsunternehmen-darktrace-a-3f6bb85e186ee13e3aa35ccc3d799a71/
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Amazon Exposes Advanced APT Exploiting Cisco ISE (RCE) and Citrix Bleed Two as Simultaneous Zero-Days
The post Amazon Exposes Advanced APT Exploiting Cisco ISE (RCE) and Citrix Bleed Two as Simultaneous Zero-Days appeared first on Daily CyberSecurity. First seen on securityonline.info Jump to article: securityonline.info/amazon-exposes-advanced-apt-exploiting-cisco-ise-rce-and-citrix-bleed-two-as-simultaneous-zero-days/
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Zero-day exploits hit Cisco ISE and Citrix systems in an advanced campaign
Tags: access, attack, authentication, cisco, citrix, credentials, defense, encryption, endpoint, exploit, identity, infrastructure, monitoring, network, risk, service, tactics, threat, update, zero-daypatch-gap exploitation technique is a hallmark of sophisticated threat actors who closely monitor security updates and quickly weaponize vulnerabilities.”Amazon did not immediately respond to CSO’s queries on why it’s sharing information about the zero-day exploits months after.After gaining access, the actor deployed a tailor-made web shell disguised as the “IdentityAuditAction” component of Cisco ISE. It…
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Amazon alerts: advanced threat actor exploits Cisco ISE Citrix NetScaler zero-days
Amazon warns that an advanced threat actor exploited zero-days in Cisco ISE and Citrix NetScaler to deploy custom malware. Amazon’s threat intelligence researchers spotted an advanced threat actor exploiting two previously undisclosed zero-day flaws in Cisco Identity Service Engine (ISE) and Citrix NetScaler ADC to deliver custom malware. Attackers also exploited multiple undisclosed vulnerabilities. Amazon’s…
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Zero-Day Vulnerabilities in Cisco and Citrix Targeted by APT Group, Amazon Confirms
Amazon’s threat intelligence division has revealed a cyber-espionage campaign involving an advanced persistent threat (APT) group exploiting previously undisclosed zero-day vulnerabilities in systems from Cisco and Citrix. The investigation showed that the attackers specifically targeted critical identity and network access control infrastructure; components of enterprises rely on managing authentication and enforcing security policies across their networks. First…
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Zero-Day Vulnerabilities in Cisco and Citrix Targeted by APT Group, Amazon Confirms
Amazon’s threat intelligence division has revealed a cyber-espionage campaign involving an advanced persistent threat (APT) group exploiting previously undisclosed zero-day vulnerabilities in systems from Cisco and Citrix. The investigation showed that the attackers specifically targeted critical identity and network access control infrastructure; components of enterprises rely on managing authentication and enforcing security policies across their networks. First…
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Citrix NetScaler ADC and Gateway Flaw Allows Cross-Site Scripting (XSS) Attacks
Cloud Software Group has disclosed a cross-site scripting (XSS) vulnerability affecting NetScaler ADC and NetScaler Gateway platforms. The flaw, tracked as CVE-2025-12101, poses a moderate security risk to organizations relying on these network appliances for authentication and secure access services. Field Value CVE ID CVE-2025-12101 Vulnerability Type Cross-Site Scripting (XSS) CWE Classification CWE-79: Improper Neutralization…
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Citrix NetScaler ADC and Gateway Flaw Allows Cross-Site Scripting (XSS) Attacks
Cloud Software Group has disclosed a cross-site scripting (XSS) vulnerability affecting NetScaler ADC and NetScaler Gateway platforms. The flaw, tracked as CVE-2025-12101, poses a moderate security risk to organizations relying on these network appliances for authentication and secure access services. Field Value CVE ID CVE-2025-12101 Vulnerability Type Cross-Site Scripting (XSS) CWE Classification CWE-79: Improper Neutralization…
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‘CitrixBleed 2’ Wreaks Havoc as Zero-Day Bug
The same APT hammered critical bugs in Citrix NetScaler (CVE-2025-5777) and the Cisco Identity Service Engine (CVE-2025-20337) in a sign of growing adversary interest in identity and access management systems. First seen on darkreading.com Jump to article: www.darkreading.com/vulnerabilities-threats/citrixbleed-2-cisco-zero-day-bugs
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‘Advanced’ hacker seen exploiting Cisco, Citrix zero-days
The hackers notably used custom malware and were exploiting CVE-2025-5777, now known colloquially as “Citrix Bleed Two”, before it was disclosed publicly in July. First seen on therecord.media Jump to article: therecord.media/advanced-hacker-exploiting-cisco-citrix-zero-days-amazon
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Amazon pins Cisco, Citrix zero-day attacks to APT group
The vendors disclosed and patched the defects last summer, but not before advanced attackers exploited the vulnerabilities to likely gain prolonged access for espionage, according to Amazon. First seen on cyberscoop.com Jump to article: cyberscoop.com/amazon-threat-intel-apt-group-cisco-citrix-zero-days/
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Amazon pins Cisco, Citrix zero-day attacks to APT group
The vendors disclosed and patched the defects last summer, but not before advanced attackers exploited the vulnerabilities to likely gain prolonged access for espionage, according to Amazon. First seen on cyberscoop.com Jump to article: cyberscoop.com/amazon-threat-intel-apt-group-cisco-citrix-zero-days/
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APT Groups Target Construction Firms to Steal RDP, SSH, and Citrix Credentials
Tags: apt, china, citrix, credentials, cyber, cybercrime, group, iran, korea, network, north-korea, organized, ransomware, russia, threatThe construction industry has emerged as a primary target for sophisticated cyber adversaries in 2025, with threat actors including state-sponsored APT groups, ransomware operators, and organized cybercriminal networks actively targeting organizations across the building and construction sector. Nation-state actors from China, Russia, Iran, and North Korea are leveraging the industry’s rapid digital transformation and security…
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APT Groups Target Construction Firms to Steal RDP, SSH, and Citrix Credentials
Tags: apt, china, citrix, credentials, cyber, cybercrime, group, iran, korea, network, north-korea, organized, ransomware, russia, threatThe construction industry has emerged as a primary target for sophisticated cyber adversaries in 2025, with threat actors including state-sponsored APT groups, ransomware operators, and organized cybercriminal networks actively targeting organizations across the building and construction sector. Nation-state actors from China, Russia, Iran, and North Korea are leveraging the industry’s rapid digital transformation and security…