CVE-2018-0154: Cisco IOS Software Integrated Services Module for VPN Denial-of-Service Vulnerability
Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-340e48952940, updated 2026-11-02T23:39:54.475Z.
CISA Known Exploited Vulnerabilities
- Name
- Cisco IOS Software Integrated Services Module for VPN Denial-of-Service Vulnerability
- Vendor
- Cisco
- Product
- IOS Software
- Added to the catalog
- 2022-03-03
- Due date for US federal agencies
- 2022-03-17
- Weaknesses
- CWE-399
- Catalog version
- 2026.10.30
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.
Required action (CISA)
Apply updates per vendor instructions.
Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.
Links in CISA's notes
Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
NVD analysis
- Status
- Analyzed
- Published
- 2018-03-28T22:29:00.373
- Last modified
- 2026-06-17T01:29:57.150
- Weaknesses
- CWE-399, NVD-CWE-noinfo
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.
| Metric | Score | Severity | Vector | Scored by |
|---|---|---|---|---|
| CVSS 3.1 | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | [email protected] (Primary) |
| CVSS 3.1 | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 2.0 | 7.8 | HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C | [email protected] (Primary) |
References
- http://www.securityfocus.com/bid/103559 (Broken Link, Third Party Advisory, VDB Entry)
- http://www.securitytracker.com/id/1040585 (Broken Link, Third Party Advisory, VDB Entry)
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dos (Vendor Advisory)
- http://www.securityfocus.com/bid/103559 (Broken Link, Third Party Advisory, VDB Entry)
- http://www.securitytracker.com/id/1040585 (Broken Link, Third Party Advisory, VDB Entry)
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dos (Vendor Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0154 (US Government Resource)
This product uses the NVD API but is not endorsed or certified by the NVD.
Read on 2026-11-02T23:41:35.381Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2018-0154
CVE record
- Assigner
- cisco
- State
- PUBLISHED
- Published
- 2018-03-28T22:00:00.000Z
- Updated
- 2026-01-12T21:51:50.881Z
- Problem types
- CWE-399
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.
References
- 103559
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dos
- 1040585
Read on 2026-11-03T00:35:51.801Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2018/0xxx/CVE-2018-0154.json
Sources and licences
CISA
Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.
National Vulnerability Database (NIST)
This product uses the NVD API but is not endorsed or certified by the NVD.
NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)
CVE Program, The MITRE Corporation
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Cite this page
Dragons Eye Ransomware Tracker, "CVE-2018-0154: Cisco IOS Software Integrated Services Module for VPN Denial-of-Service Vulnerability",
entity page, dataset version ref-340e48952940, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2018-0154 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-17T01:29:57.150.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2026-01-12T21:51:50.881Z.
Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.