Executive Risk Summary
"A denial of service vulnerability exists in the cat6000-dot1x component of Cisco IOS due to improper handling of an external loop between a pair of dot1x enabled ports. This allows remote attackers to cause a traffic storm via unspecified vectors that trigger many unicast EAPoL Protocol Data Units (PDUs)."
Anticipated Attack Path
- 1. Step 1: Identify vulnerable Cisco IOS devices with the cat6000-dot1x component
- 2. Step 2: Craft and send malicious EAPoL PDUs to trigger the traffic storm
- 3. Step 3: Overwhelm the device with traffic, resulting in a denial of service
Am I Vulnerable?
- Verify the Cisco IOS version is prior to 12.2(33)SXI7
- Check for the presence of the cat6000-dot1x component
- Monitor for unusual traffic patterns and EAPoL PDU activity
Operational Audit Arsenal
Target Type Network Device
Target Asset cat6000-dot1x
Standard Path Cisco IOS device
Manual Verification Required
This is a non-Windows asset (Cisco). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.
Patch Impact Forecast
Reboot Required Likely
Network connectivity may be disrupted during the patching process
Internal Work Notes
Denial of Service vulnerability in Cisco IOS cat6000-dot1x component, requiring patch update to 12.2(33)SXI7 or later
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
Related Cisco Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.