Actively Exploited
Hackers exploit Citrix NetScaler zero-day to deploy web shells
Cybersecurity firms say attackers exploited the Citrix NetScaler CVE-2026-88772 zero-day to deploy custom web shells and tunneling malware, gain root access, steal credentials, and spread into internal networks. Mandiant says the attacks began in at least early September and are believed to have impacted organizations in North America and Europe across the government, financial services, […]
CISA orders feds to patch exploited Citrix flaws by Wednesday
The Cybersecurity and Infrastructure Security Agency (CISA) has ordered U.S. government agencies over the weekend to secure their systems against attacks exploiting two critical Citrix NetScaler vulnerabilities. Citrix released security updates to address the flaws (tracked as CVE-2026-88771 and CVE-2026-88772) days after national cybersecurity agencies, IT suppliers, and security teams began privately contacting Citrix customers […]
Citrix confirms two NetScaler RCE zero-days exploited in attacks
Citrix has confirmed that two critical NetScaler remote code execution vulnerabilities, tracked as CVE-2026-88771 and CVE-2026-88772, are being exploited in attacks and that it has released security updates to fix the flaws. The vulnerabilities are the same zero-days that cybersecurity researchers, IT providers, and national cybersecurity agencies began privately warning organizations about over the weekend. […]
CISA warns of Sharepoint, WSO2, Adobe Commerce flaws exploited in attacks
The Cybersecurity and Infrastructure Security Agency (CISA) warns that hackers are exploiting a critical authentication bypass vulnerability (CVE-2026-5430) affecting multiple products from enterprise software provider WSO2. The agency also added CVE-2026-71362, another critical-severity flaw affecting Adobe Commerce, to the list of security issues being leveraged in attacks. Hackers are also exploiting two additional vulnerabilities: a high-severity […]
Hackers now exploit critical Roundcube flaw in code injection attacks
A high-severity Roundcube Webmail vulnerability patched in May is now being actively exploited in attacks, according to the Canadian Centre for Cyber Security. Roundcube Webmail is a browser-based IMAP email client used as the default mail interface by thousands of services with millions of users, and it is pre-installed with the widely used cPanel web […]
CISA: Ransomware gangs now exploiting critical TeamCity flaw
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned federal agencies on Wednesday that ransomware gangs are now also exploiting a critical JetBrains TeamCity vulnerability patched in July. JetBrains patched the security flaw (tracked as CVE-2026-63077) on July 25 in TeamCity On-Premises versions 2025.11.7 and 2026.1.3, saying it is a critical authentication bypass vulnerability that […]
Check Point warns of hackers exploiting Security Gateway VPN RCE flaw
Cybersecurity company Check Point has confirmed active exploitation of CVE-2026-85102, a pre-authentication remote code execution (RCE) vulnerability in the VPN certificate-handling functionality of its Security Gateway product. The same advisory also warns of threat actors exploiting a pre-authentication path traversal flaw tracked as CVE-2026-93616, which impacts the Management web service and can allow script execution and Java […]
Hackers start exploiting critical WordPress flaw for code execution
Threat actors have moved from probing WordPress sites vulnerable to CVE-2026-87902 to exploiting the flaw to write files to disk that execute shell commands when accessed. Initial attack traffic was only for reconnaissance and started less than five hours after the patch was released in WordPress 7.1.2. Malicious activity increased by ten times, and attackers […]
InfraTrust report warns network management systems under attack
Attackers are increasingly targeting the management systems used to control enterprise infrastructure, with several critical vulnerabilities actively exploited before or shortly after vendors disclosed them. This was reported in the September edition of Eclypsium’s InfraTrust Pulse, a monthly report tracking security advisories affecting network devices, servers, firmware, chips, and other infrastructure. Between August 25 and […]
Arista patches actively exploited VeloCloud Orchestrator zero-day
Arista Networks has released security patches for a zero-day flaw that is being actively exploited and affects VeloCloud Orchestrator (VCO) On-Prem deployments. VCO is a cloud-based centralized management platform that helps admins configure, monitor, and manage VeloCloud SD-WANs (Software-Defined Wide Area Networks) and associated edge devices. Tracked as CVE-2026-93952, this maximum-severity flaw stems from an […]