Cisco ASA zero-day attacks used RayInitiator bootkit and LINE VIPER malware to breach end-of-support firewalls.

Cisco released emergency patches for two firewall vulnerabilities exploited as zero-days in the ArcaneDoor espionage campaign ...

IntroductionOn September 25, 2025, Cisco released a security advisory to patch three security flaws impacting the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) and Cisco ...

In a separate alert, CISA said it's issuing an emergency directive urging federal agencies to identify, analyze, and mitigate ...

Cisco published advisories and a supplemental post about three zero-day vulnerabilities, two of which were exploited in the wild by an advanced threat actor associated with the ArcaneDoor ...

The rearchitecture of Ivanti Connect Secure will help customers elevate security posture, enhance control and performance, ...

A critical zero-day vulnerability in certain Cisco Systems firewalls has to be patched immediately, US and UK cyber ...

Due to current attacks, admins should update Cisco Firewall Adaptive and Security Appliance Secure Firewall Threat Defence.

Cisco analysis suggests the origin of the attacks could be ArcaneDoor, a state-sponsored threat actor the vendor first ...

The US’s Cybersecurity and Infrastructure Security Agency has issued an emergency directive, calling the hacking campaign ...

CISA has issued a new emergency directive ordering U.S. federal agencies to secure their Cisco firewall devices against two flaws that have been exploited in zero-day attacks.

Cyberattacks that have exploited two zero-day Cisco firewall vulnerabilities prompted the U.S. Cybersecurity and ...