CVE-2018-0418

Name: CVE-2018-0418
Creator: NVD / NIST
Published: 2018-08-15T20:29:01.017+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 3.96%

Last modified Jun 17, 2026

CVE-2018-0418 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. A vulnerability in the Local Packet Transport Services (LPTS) feature set of Cisco ASR 9000 Series Aggregation Services Router Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input and validation checking on certain Precision Time Protocol (PTP) ingress traffic to an affected device. EPSS estimates a 3.96% chance of exploitation in the next 30 days.

Description

A vulnerability in the Local Packet Transport Services (LPTS) feature set of Cisco ASR 9000 Series Aggregation Services Router Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input and validation checking on certain Precision Time Protocol (PTP) ingress traffic to an affected device. An attacker could exploit this vulnerability by injecting malformed traffic into an affected device. A successful exploit could allow the attacker to cause services on the device to become unresponsive, resulting in a DoS condition. Cisco Bug IDs: CSCvj22858.

Metrics

CVSS 3.1

8.6/10

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

EPSS Probability

3.96%

89.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Ios Xr	<= 6.3.3_base

References

http://www.securityfocus.com/bid/105185Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041538Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-asr-ptp-dosVendor Advisory
http://www.securityfocus.com/bid/105185Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041538Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-asr-ptp-dosVendor Advisory

Timeline

Published: Aug 15, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0418?

How severe is CVE-2018-0418?

CVE-2018-0418 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 3.96% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0418?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0418?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST