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Cybersecurity researchers have discovered a new campaign attributed to a China-linked threat actor known as UAT-8099 that took place between late 2025 and early 2026
An advanced threat actor exploited the critical vulnerabilities "Citrix Bleed 2" (CVE-2025-5777) in NetScaler ADC and Gateway, and CVE-2025-20337 affecting Cisco Identity Service Engine (ISE) as zero-days to deploy custom malware. [...]
CISA Issues Emergency Directive After Cisco Exploits Persist After RebootCISA issued an emergency directive Thursday after discovering an advanced hacking campaign exploiting two persistent zero-days in Cisco firewall gear - malware that survives system reboots and upgrades - forcing agencies to disconnect vulnerable devices by Friday.
A Chinese-speaking threat actor tracked as UAT-6382 has been linked to the exploitation of a now-patched remote-code-execution vulnerability in Trimble Cityworks to deliver Cobalt Strike and VShell
Threat actor "Velvet Ant" has been exploiting a vulnerability in Cisco's NX-OS Software for managing a variety of switches, executing commands and dropping custom malware.
A China-nexus cyber espionage group named Velvet Ant has been observed exploiting a zero-day flaw in Cisco NX-OS Software used in its switches to deliver malware
Cisco has patched an NX-OS zero-day exploited in April attacks to install previously unknown malware as root on vulnerable switches. [...]
A new malware campaign leveraged two zero-day flaws in Cisco networking gear to deliver custom malware and facilitate covert data collection on target environments
The malware has been in circulation since 2020, with sophisticated, advanced malicious actors taking advantage of the vulnerabilities in SOHO routers as the work-from-home population expands rapidly.