Cisco — Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability
CISA KEV · in the CISA KEV catalog since 2022-03-03
Listed in the CISA KEV catalog, and an EPSS probability of 0.077.
Patch This Cycle
The priority band answers “how soon”, not “how bad” — see Methodology for what it weighs and where it abstains.
| Measure | Value | Source | What it means |
|---|---|---|---|
| CVSS base score | 8.6 | NVD | How severe the flaw is in itself. It does not say how likely an attack is. |
| FIRST EPSS | 0.077 (94.6th pctl) | FIRST | FIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. |
| Actively exploited | Confirmed | CISA KEV | Whether a source of record has confirmed attacks using it in the wild. |
| Ransomware campaign use | Unknown or none | CISA KEV | Whether CISA has seen ransomware operators use it. |
| CISA remediation deadline | 2022-03-17 — KEV since 2022 · listed over a year | CISA KEV | The date US federal agencies must have fixed or mitigated it. |
| Public exploit module | None known | Metasploit | Module existing is not the same as active exploitation. |
| EUVD cross-reference | Listed | ENISA EUVD | ENISA's own vulnerability database entry for this CVE, where one exists. |
Impacted software or hardware
+5 more affected products — see the full list at NVD.
Remediation: Apply updates per vendor instructions.
Remediation basis: CISA KEV required action
ENISA EUVD also lists this CVE at CVSS 8.6 (v3.1), assigned by cisco. Source: euvd.enisa.europa.eu.
7.74% as of 2026-10-16 (94.6th percentile). FIRST EPSS, recorded daily since this page started tracking it.
This page is an opinion about urgency. Where it and a source of record disagree, the source of record is the record.
Where this sits
CVE-2018-0155 is one of the entries ranked on the priority feed and in the non-Microsoft advisories.
