Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2018-0154

CVE-2018-0154HIGH

n/a Cisco IOS — Cisco IOS Software

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  N  N  H    7.5   .0707   94.1   YES

AFFECTED
  Product    Versions     Fixed
  Cisco IOS  Cisco IOS –  —

TIMELINE
  Nov 27  Reserved by cisco
  Mar 28  Published (CNA: cisco)
  Mar 3   Added to CISA KEV, remediation due 2022-03-17

CWE-399 · CNA: cisco · CVSS v3.1 · 4 references · KEV due March 17, 2022

Description

A vulnerability in the crypto engine of the Cisco Integrated Services Module for VPN (ISM-VPN) running Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient handling of VPN traffic by the affected device. An attacker could exploit this vulnerability by sending crafted VPN traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to hang or crash, resulting in a DoS condition. Cisco Bug IDs: CSCvd39267.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
November 27, 2017	Reserved	Reserved by cisco
March 28, 2018	Published	Published (CNA: cisco)
March 3, 2022	KEV ADDED	Added to CISA KEV, remediation due 2022-03-17

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	Cisco IOS	—	Cisco IOS	—

Weaknesses

CWE-399

References (4)

http://www.securityfocus.com/bid/103559 [vdb-entry, x_refsource_BID]
http://www.securitytracker.com/id/1040585 [vdb-entry, x_refsource_SECTRACK]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dos [x_refsource_CONFIRM]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0154 [government-resource]

Authoritative record: CVE-2018-0154 at cve.org

Weaknesses: CWE-399

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2018-0154 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, October 8, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.