CVE record · CVE-2018-0155

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,…

CVSS 8.6 HighCriticalIn CISA KEVEPSS 0.077 · 94th percentile

Critical, because:

In CISA’s KEV catalogue since 3 Mar 2022: it is known to be exploited.

Published by the CVE Program (CNA: cisco) at 28 Mar 2018, 22:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Not given	Cisco IOS and IOS XE	affected Cisco IOS and IOS XE

Identifiers: CVE-2018-0155
CNA: cisco
Weakness (CWE): CWE-388
Tags: Cisco IOS and IOS XE
CWE-388
Published: 28 Mar 2018
Updated: 12 Jan 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.6	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H	ADP (CISA-ADP)

CISA KEV Listed since 3 Mar 2022: known to be exploited.
EPSS 0.077, the 94th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 28 Mar 2018. New records show when each source confirmed them.

Sources

References from the CNA

www.securitytracker.com/id/1040587 vdb-entrysectrack
www.securityfocus.com/bid/103565 vdb-entrybid
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd confirm
ics-cert.us-cert.gov/advisories/ICSA-18-107-05

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.