On march the 22nd of the current month, Cisco released a new Security Advisory that affects several Cisco Products. Most vulnerabilities addressed allow remote threat actors to be able to exploit these vulnerabilities to gain control of an affected device.
Here's a list of the vulnerabilities:
Cisco IOS XE Software for Wireless LAN Controllers HTTP Client Profiling Denial of Service Vulnerability
We can find the following devices amongts the affected by the afore aforementioned vulnerabilities:
1000 Series Integrated Services Routers (ISRs)
ASR 1000 Series Aggregation Services Routers
4000 Series ISRs
Catalyst 8000 Edge Platforms Family
Cloud Services Router (CSR) 1000V Series
Business 150 APs and 151 Mesh Extenders
Catalyst 9100 APs
Catalyst 8000V Edge Software Routers
Catalyst 8200 Series Edge Platforms
Catalyst 8300 Series Edge Platforms
Catalyst 8500L Series Edge Platforms
Cisco IOS XE Software releases 17.9.1, 17.9.1a, or 17.9.1w and have a tunnel interface configured.
We highly recomend checking the release for more information and affected devices / IOS Versions.