How severe is CVE-2018-0154?

CVE-2018-0154 has a CVSS 3.1 base score of 7.5 (HIGH). EPSS estimates a 7.1% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2018-0154: Cisco IOS Software Integrated Services Module for VPN

CISA Known Exploited Vulnerabilities

Cisco IOS Software Integrated Services Module for VPN Denial-of-Service Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-03-03

Remediation due

2022-03-17

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2018-0154

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.

Severity

CVSS 3.1 · CISA7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impactpartial

Affected Products

Vendor	Product	Affected versions
-	Cisco IOS	Cisco IOS

References

3 Links

Vulnerability databases

Other references

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dos

Record Details

Published

2018-03-28

Last updated

2026-01-12

Assigner (CNA)

cisco

Credited to

Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-399 · Resource Management Errors

Fuzzing

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.