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An unknown threat actor exploited a recently disclosed high-severity security flaw impacting Cisco Catalyst SD-WAN as a zero-day at least two months before it was publicly disclosed, according to new findings from Google-owned Mandiant
Second Catalyst SD-WAN Manager flaw exploited as an 0-day this month
Cisco has released security updates to address a vulnerability in the Catalyst SD-WAN Manager, tracked as CVE-2026-20262, that was exploited in attacks to escalate to root privileges. [...]
On Thursday, Cisco warned of a high-severity, unpatched zero-day in the Cisco Catalyst SD-WAN Manager (tracked as CVE-2026-20245) actively exploited in attacks enabling root privilege escalation. [...]
Amazon Threat Intelligence is warning of an active Interlock ransomware campaign that's exploiting a recently disclosed critical security flaw in Cisco Secure Firewall Management Center (FMC) Software
Vendor Ships Emergency Fixes, Warning Flaw Facilitates Full System CompromiseAttackers are targeting a zero-day vulnerability in Cisco's Unified Communications and Webex products that facilitates remote code execution and root-level access to the underlying operating system, risking full system compromise. Cisco has released patches, warning that no workarounds exist.
The latest in a run of serious networking bugs gives attackers root if they have SNMP access Cisco has confirmed a new IOS and IOS XE zero-day, the latest in a string of flaws that attackers have been quick to weaponize.…
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. [...]