CISA
Firestarter malware survives Cisco firewall updates, security patches
Cybersecurity agencies in the U.S. and U.K. are warning about a custom malware called Firestarter persisting on Cisco Firepower and Secure Firewall devices running Adaptive Security Appliance (ASA) or Firepower Threat Defense (FTD) software. The backdoor has been attributed to a threat actor that Cisco Talos tracks internally as UAT-4356, known for cyberespionage campaigns, including ArcaneDoor. […]
CISA orders feds to patch BlueHammer flaw exploited as zero-day
CISA has given U.S. government agencies two weeks to secure their Windows systems against a Microsoft Defender privilege escalation vulnerability that has been exploited in zero-day attacks. Tracked as CVE-2026-33825, this high-severity security flaw allows low-privileged local threat actors to gain SYSTEM permissions on unpatched devices by exploiting an insufficient granularity of access control weakness. Microsoft patched […]
CISA flags new SD-WAN flaw as actively exploited in attacks
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has given government agencies four days to secure their systems against another Catalyst SD-WAN Manager vulnerability it flagged as actively exploited in attacks. Catalyst SD-WAN Manager (formerly known as vManage) is a network management software that helps admins monitor and manage up to 6,000 Catalyst SD-WAN devices […]
CISA flags Apache ActiveMQ flaw as actively exploited in attacks
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned on Thursday that a high-severity Apache ActiveMQ vulnerability patched earlier this month is now actively exploited in attacks. Apache ActiveMQ is the most popular open-source Java-based message broker for asynchronous communication between applications. Tracked as CVE-2026-34197, the security flaw has gone undetected for 13 years and was discovered by Horizon3 […]
CISA flags Windows Task Host vulnerability as exploited in attacks
CISA warned U.S. government agencies to secure their systems against a Windows Task Host privilege escalation vulnerability that could allow attackers to gain SYSTEM privileges. Task Host is a core Windows system component that serves as a container for DLL-based processes, allows them to operate in the background, and ensures they close properly during shutdown […]
CISA orders feds to patch exploited Ivanti EPMM flaw by Sunday
CISA has given U.S. government agencies four days to secure their systems against a critical-severity vulnerability in Ivanti Endpoint Manager Mobile (EPMM) that has been exploited in attacks since January. Tracked as CVE-2026-1340, this critical-severity code injection flaw enables threat actors without privileges to gain remote code execution on Internet-exposed and unpatched EPMM appliances. Ivanti flagged this and a second security […]
CISA orders feds to patch exploited Fortinet EMS flaw by Friday
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) ordered federal agencies to secure FortiClient Enterprise Management Server (EMS) instances against an actively exploited vulnerability by Friday. Tracked as CVE-2026-35616, this security flaw was discovered by cybersecurity firm Defused, which described it as a pre-authentication API access bypass that can allow attackers to bypass authentication and […]
CISA orders feds to patch actively exploited Citrix flaw by Thursday
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) ordered government agencies to patch their Citrix NetScaler appliances against an actively exploited vulnerability by Thursday. Multiple cybersecurity companies flagged the flaw (CVE-2026-3055) as posing an increased risk of exploitation after Citrix released security updates on March 23, noting a technical resemblance to the widely exploited ‘CitrixBleed’ and ‘CitrixBleed2’ security issues. […]
Hackers exploiting critical F5 BIG-IP flaw in attacks, patch now
Cybersecurity firm F5 Networks has reclassified a BIG-IP APM denial-of-service (DoS) vulnerability as a critical-severity remote code execution (RCE) flaw, warning that attackers are exploiting it to deploy webshells on unpatched devices. BIG-IP APM (short for Access Policy Manager) is a centralized access management proxy solution that enables admins to secure and manage user access […]
CISA: New Langflow flaw actively exploited to hijack AI workflows
The Cybersecurity and Infrastructure Security Agency (CISA) is warning that hackers are actively exploiting a critical vulnerability identified as CVE-2026-33017, which affects the Langflow framework for building AI agents. The security issue received a critical score of 9.3 out of 10 and can be leveraged for remote code execution, allowing threat actors to build public flows without authentication. […]