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Also, Lloyds Data Leak, Dutch Treasury Breach, Citrix Bug Exploit, Pay2Key ActivityThis week, Lloyds data leak hits 450K, Dutch treasury breach, Citrix flaw exploited, Iran-linked ransomware ops, TrueConf zero-day, Russian fraud ring sentenced, Romania targeted, patch gaps persist, and U.S. hospital breach affects 257K.
Citrix Publishes Patches After Attackers Exploit Memory Overflow VulnerabilityNetScaler customers of virtualization giant Citrix once again should patch immediately to stymie the hackers exploiting a zero-day. Citrix warned Tuesday that hackers are using a memory overflow vulnerability now tracked as CVE-2025-7775. The vulnerability carries a CVSS score of 9.2.
Ransomware Group Among Attackers Focused on Exploiting Citrix Netscaler FlawSecurity experts warn that attackers have ramped up their collective attempts to find and exploit Citrix NetScaler devices that remain unpatched. Cloud Security Group patched CVE-2025-5777, a flaw also known as "Citrix Bleed 2," nearly four weeks ago with a software update.
Citrix Issues Patches to Counter Active Attacks Against Two Critical VulnerabilitiesAdministrators of Citrix Netscaler devices are being urged to immediately patch their devices to fix two actively exploited vulnerabilities. One, dubbed Citrix Bleed 2, can be abused by hackers to bypass multifactor authentication, hijack user sessions and gain unauthorized access to the equipment.
Also, O Canada, Oh Brother and More Probable Chinese HackingThis week, ransomware kills, Salt Typhoon hit Canada, Russian backdoors, SAP and Citrix patches, China hackers in the oil and energy sector. Brother printers have an unfixable flaw. Ransomware hit a U.S. dairy cooperative. Hackers in Albania and Oxford. European lawmakers heard cybersecurity advice.
AG Says HealthAlliance Tried But Failed to Fix Zero-Day Flaw That Led to ExploitNew York State has levied a $550,000 fine against a healthcare group that tried - but failed - to patch a critical zero-day vulnerability in a Citrix NetScaler appliance used for telemedicine. Hackers exploited the flaw, stealing 196 gigabytes of data in an incident affecting 242,000 people.
LockBit and Nation-State Groups Using Session Tokens to Access Patched DevicesWith experts warning that NetScaler ADC and Gateway devices are being exploited by nation-state and cybercrime groups, the manufacturer has again urged all users to "patch immediately as well as terminate active sessions, which attackers can otherwise use to access devices even post-patch.
LockBit and Nation-State Groups Using Session Tokens to Access Patched DevicesWith experts warning that NetScaler ADC and Gateway devices are being exploited by nation-state and cybercrime groups, the manufacturer has again urged all users to "patch immediately as well as terminate active sessions, which attackers can otherwise use to access devices even post-patch.