Tag: citrix
50 articles
Citrix Warns of Zero-Day Attack on Unpatched NetScaler Systems
Citrix is warning users of a zero-day attack targeting unpatched NetScaler systems, so if you haven't updated yet, now's the time to take action and protect your systems from potential harm.
Citrix Patches Flaw That Enables RCE in SAML Deployments
Citrix has patched a critical vulnerability, CVE-2026-107406, with a near-perfect score of 9.5, that could allow devastating remote code execution or denial-of-service attacks in SAML deployments. The flaw can be triggered under specific configuration conditions when NetScaler instances are set up as a SAML identity provider or service provider.
Citrix Warns of Immediate Patching Need for NetScaler RCE Flaw
Citrix is sounding the alarm on a critical vulnerability, CVE-2026-107406, that can lead to remote code execution or a denial-of-service state in NetScaler devices - and it's urging admins to patch immediately.
Citrix Unveils Third Exploited NetScaler Zero-Day Vulnerability
Citrix has just revealed a third critical NetScaler zero-day vulnerability, CVE-2026-88779, which can cause a denial of service in SAML-enabled deployments, and security experts warn it's painfully easy to trigger. This high-severity defect is the latest in a string of actively exploited NetScaler vulnerabilities.
Citrix Warns of Targeted Attacks Via New Zero-Day Flaw
Citrix is warning of targeted attacks exploiting a newly discovered zero-day flaw, CVE-2026-88779, a high-severity memory buffer issue that could disrupt services for vulnerable NetScaler ADC and NetScaler Gateway customers. The company has urged affected users to act quickly to protect themselves from potential denial-of-service attacks.
Citrix NetScaler Zero-Day Exploited in Targeted Attacks
A critical zero-day vulnerability, CVE-2026-88779, has been exploited in targeted attacks, causing concern for Citrix NetScaler ADC and Gateway users. This memory overflow flaw can lead to denial-of-service attacks when specific deployment conditions are met.
Citrix Disrupts Zero-Day Attacks on NetScaler with Emergency Patches
Citrix has rolled out emergency patches to shield NetScaler from zero-day attacks that can cause Denial of Service chaos, and you should update ASAP to avoid getting caught in the crossfire. The newly discovered vulnerability, CVE-2026-88779, has already been exploited in targeted attacks, earning a scary CVSS score of 8.7.
Hackers Exploit Citrix Zero-Day to Deploy Web Shells, Malware
Hackers were quick to pounce on a Citrix zero-day vulnerability, attempting to install a hidden PHP web shell just days before the flaw was publicly disclosed. This early activity sparked a wider campaign, enabling attackers to gain root access, deploy malware, and tunnel into internal networks using the newly disclosed CVE-2026-88771 and CVE-2026-88772 vulnerabilities.
Citrix Zero-Day Exploits Target Gov't, Finance Firms with Custom Malware
A concerning cybersecurity crisis is unfolding as government agencies, banks, and other organizations across North America and Europe face targeted attacks exploiting critical Citrix vulnerabilities with custom malware. The attacks, which have been observed in the wild, take advantage of two critical CVEs, CVE-2026-88771 and CVE-2026-88772, both rated 9.5 CVSS.
NetScaler Zero-Days Exploited in Wild, 50,277 Instances Exposed
A whopping 50,277 NetScaler instances are potentially vulnerable to two newly exploited zero-day flaws, CVE-2026-88771 and CVE-2026-88772, according to Palo Alto Networks' Cortex Xpanse telemetry. This alarming number was highlighted in Unit 42's threat brief, revealing a possible zero-day attack on NetScaler devices.
Citrix Rushes Patches for Exploited NetScaler Zero-Days
Citrix has rushed out patches for two critical zero-day vulnerabilities, CVE-2026-88771 and CVE-2026-88772, which were being actively exploited by hackers, with a severity rating of 9.5 on the CVSS scale. The patches fix command-injection flaws that allowed remote code execution, and were released just days after researchers warned of the threats.
Citrix Patches Zero-Days Exploited in Active Attacks
Citrix has sounded the alarm, warning that two critical zero-day vulnerabilities, CVE-2026-88771 and CVE-2026-88772, are being actively exploited in the wild, putting unpatched NetScaler deployments at risk. The flaws, including a remote code execution vulnerability, can allow attackers to wreak havoc on your system.
Citrix Warns of Critical Vulnerabilities Under Active Attack
Critical vulnerabilities in Citrix NetScaler appliances are under active attack globally, and the Cybersecurity and Infrastructure Security Agency (CISA) is urging organizations to patch quickly despite the potential complexity of the update process.
CISA Mandates Patching of Exploited Citrix Flaws
The US government has stepped in, mandating that federal agencies patch two critical Citrix flaws by September 30 to prevent exploitation by malicious actors. This swift action follows the discovery of over 23,000 Internet-facing IP addresses vulnerable to these Citrix NetScaler flaws.
Citrix NetScaler Zero-Days Exploited in Wild Ahead of Patches
Citrix administrators were abruptly warned to shut down their NetScaler appliances amid reports of zero-day exploits being used in the wild, with private alerts circulating before patches were available. The sudden shutdowns followed discreet notifications from IT suppliers, security teams, and law enforcement, leaving many scrambling for answers.
Citrix NetScaler Zero-Days Under Active Exploitation
Security firm watchTowr has sounded the alarm about two zero-day vulnerabilities in Citrix NetScaler appliances that are already being exploited in the wild, allowing for remote code execution. These unpatched flaws were discovered during forensic investigations and are expected to have a fix soon.
CISA Flags Exploited Cisco, Citrix, Fortinet Flaws Ahead of Federal Patch Deadline
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has sounded the alarm on three critical vulnerabilities in Cisco, Citrix, and Fortinet products, adding them to its list of Known Exploited Vulnerabilities - and federal agencies have just until September 12, 2026 to patch up. These flaws, including a severe CVE-2026-20079 with a CVSS score of 10.0, could leave systems exposed to serious threats if not addressed.
Citrix NetScaler Flaw Exploited in Targeted Attacks
Citrix is urging customers to act fast to protect their NetScaler deployments from a critical flaw, known as CVE-2026-19490, that lets hackers bypass authentication and gain unauthorized access. To stay safe, review the security bulletin, check if your setup is vulnerable, and upgrade to the recommended build ASAP.
CISA Flags Six Exploited Flaws in Microsoft, Linux, Citrix Products
The US Cybersecurity and Infrastructure Security Agency (CISA) has just sounded the alarm, adding six new vulnerabilities to its Known Exploited Vulnerabilities catalog in a single day - a stark reminder that threat actors are relentlessly targeting both old and newly discovered software weaknesses. This urgent move underscores the need for immediate action to patch these flaws and prevent exploitation.
AI Models Accelerate Vulnerability Discovery
New AI models are revolutionizing vulnerability discovery, condensing a process that once took months into just hours and leaving defenders scrambling to keep up. This acceleration is outpacing traditional patch cycles, with attackers now able to develop working exploit code in as little as a week.
Citrix Flaw Exposes Authentication on NetScaler Servers
Citrix has warned of a critical authentication bypass vulnerability, CVE-2026-19490, affecting NetScaler servers, urging customers to review their configurations and prioritize patching based on exposure and deployment role.
Citrix Warns of Two New NetScaler Flaws
Citrix is urging customers to take immediate action to protect their NetScaler ADC and Gateway deployments from two newly discovered vulnerabilities, including a critical authentication bypass flaw that could allow remote attackers to gain unauthorized access. Upgrade to the recommended builds as soon as possible to safeguard your systems.
Citrix Discloses High-Severity NetScaler Flaw with CitrixBleed Echoes
Citrix has uncovered a high-severity flaw in its NetScaler appliances, adding to concerns about the trend of fragile memory management in these systems, which can lead to sensitive data leaks with just a misconfiguration. This latest vulnerability, CVE-2026-8451, was discovered by watchTowr researchers and is part of six newly disclosed vulnerabilities in Citrix's NetScaler ADC and Gateway appliances.
Citrix Fixes Flaws in NetScaler Software Exposing Users to File Reads and DoS Attacks
Citrix has patched six high-risk vulnerabilities in its NetScaler software, including flaws that could expose users to file reads and devastating denial-of-service attacks. These critical updates address issues with CVSS scores as high as 8.8, emphasizing the urgent need for users to apply the fixes.