Security readout for executives and security teams
CVE-2018-0155 can let an unauthenticated remote attacker crash certain Cisco Catalyst switches by sending a malformed BFD packet. The business impact is availability: affected network switches may reload, interrupting connectivity for sites, plants, or data centers that depend on them. Exposure is most likely where listed Catalyst 4500, 4500-X, 4900M, or 4948E platforms run affected Cisco IOS or IOS XE and can receive or forward BFD traffic. The bundle does not specify affected release ranges. Treat as high priority for operational networks. The issue can cause network outages without authentication and is listed by CISA as known exploited. Remediation should be scheduled urgently for critical switching paths. Mitigation focus: Identify affected Cisco Catalyst models and supervisor engines in production.; Review Cisco advisory cisco-sa-20180328-bfd for fixed software or mitigations.; Prioritize remediation for internet-facing, WAN, industrial, or core switching paths..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookupCVE-2018-0155 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.6 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H3.94Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.6HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfdCVE reference · x_refsource_CONFIRM
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05CVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0155CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
7PK - Errors
7PK - Errors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.