As customary with Cisco IOS releases, the newest one has an extensive range of features tucked into the code, with enhancements that could help users bolster their VoIP and security implementations.

Cisco is warning IOS and IOS EXE users of five security vulnerabilities it rates as “High” that could lead to denial of service attacks or allow an invader to execute arbitrary code on an particular ...

Cisco has released security updates to address a high-severity zero-day vulnerability in Cisco IOS and IOS XE Software that is currently being exploited in attacks. Tracked as CVE-2025-20352, the flaw ...

US IT security authority CISA warns of attacks on an 18-year-old Cisco vulnerability. A guide aims to help secure routers.

Facepalm: The Cisco ecosystem is facing yet another severe security vulnerability. This 0-day flaw has been actively exploited for several weeks, so it's crucial for customers and system ...

Cisco has patched a denial of service (DoS) vulnerability that lets attackers crash the Border Gateway Protocol (BGP) process on IOS XR routers with a single BGP update message. IOS XR runs on the ...

With tens of thousands of Cisco devices now believed to have been compromised, experts tell CRN that it’s among the biggest edge attacks to date. Malicious actors seeking to break into corporate ...

One of the most serious network device attacks in recent memory continues to widen, according to Censys researchers. Compromises of Cisco IOS XE devices jumped by 8,000 on Wednesday, bringing the ...