CVE-2018-0155: Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability
A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial-of-service (DoS) condition.
| Vendor | Cisco |
|---|---|
| Product | Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches |
| Date added to KEV | 2022-03-03 |
| Due date (BOD 22-01) | 2022-03-17 |
| Known ransomware campaign use | Unknown |
| CWE | CWE-388 |
| Required action | Apply updates per vendor instructions. |
What to do
- Identify every instance of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Apply updates per vendor instructions.
- Federal civilian agencies must act by 2022-03-17 under BOD 22-01; other organizations can use the same date as a target.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
Get new KEV entries in your inbox: free n8n workflow. Free CISA KEV Patch Digest (n8n workflow) (Runbook Foundry). A Monday-morning email of KEV entries added in the previous week (Mon-Sun), with your watchlist vendors listed first.
Not affiliated with n8n GmbH or CISA. Not tested on n8n Cloud. n8n is a trademark of n8n GmbH.
Sources
- NVD entry for CVE-2018-0155 (severity scores, if any, live there)
- CISA KEV catalog entry
- https://nvd.nist.gov/vuln/detail/CVE-2018-0155