CVE-2018-0473

Name: CVE-2018-0473
Creator: NVD / NIST
Published: 2018-10-05T14:29:05.137+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.52%

Last modified Jun 17, 2026

CVE-2018-0473 is a vulnerability of currently unknown severity. A vulnerability in the Precision Time Protocol (PTP) subsystem of Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of the Precision Time Protocol. The vulnerability is due to insufficient processing of PTP packets. EPSS estimates a 3.52% chance of exploitation in the next 30 days.

Description

A vulnerability in the Precision Time Protocol (PTP) subsystem of Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of the Precision Time Protocol. The vulnerability is due to insufficient processing of PTP packets. An attacker could exploit this vulnerability by sending a custom PTP packet to, or through, an affected device. A successful exploit could allow the attacker to cause a DoS condition for the PTP subsystem, resulting in time synchronization issues across the network.

Metrics

EPSS Probability

3.52%

87.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Ios	15.2\(4\)e
Cisco	Ios	15.2\(5\)

References

http://www.securityfocus.com/bid/105427Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041737Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-19-094-03
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-ptpVendor Advisory
http://www.securityfocus.com/bid/105427Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041737Third Party Advisory, VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-19-094-03
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-ptpVendor Advisory

Timeline

Published: Oct 5, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0473?

How severe is CVE-2018-0473?

Severity scoring for CVE-2018-0473 is pending analysis. The EPSS model estimates a 3.52% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0473?

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-2018-0473?

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

Scan your code now

Source: NVD / NIST