Cisco Router Vulnerability Alert: Is Your Network at Risk?
Cisco routers might be feeling a bit vulnerable lately. If they’re running a shaky version of Cisco IOS XE Software and have NBAR for CAPWAP enabled, they could be in for a rough ride. Check your device’s mood with a few commands. If they’re activated, it might be time for a software intervention!

Hot Take:
Looks Like Cisco Routers Need to Take a Chill Pill!
Whoa, Cisco! Your routers are having a bad day, but aren’t we all? If your Cisco IOS XE Software is running like a caffeinated squirrel with the NBAR for CAPWAP feature enabled, it might need a timeout. So, before your network decides to take a virtual vacation without you, check if you’ve accidentally flipped the “vulnerable” switch. It’s like leaving the front door open and wondering how raccoons got into your kitchen.
Key Points:
- Cisco routers are vulnerable if running certain IOS XE Software versions with NBAR for CAPWAP enabled.
- Vulnerable devices include various Integrated Services Routers, ASR series, and Catalyst Edge Platforms.
- Use the command `show running-config | include tunneled-traffic capwap` to check if CAPWAP inspection for NBAR is enabled.
- Check NBAR state using `show ip nbar control-plane | include NBAR state`; if it’s ACTIVATED, your device might be vulnerable.
- Both CAPWAP inspection and NBAR activation spell trouble!
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