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Fencer Intel
high 8.6

CVE-2018-0473 json

Cisco IOS Software Precision Time Protocol Denial of Service Vulnerability

published 8y ago modified 4mo ago also EUVD-2018-1296

cvss
8.6
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.5%
EPSS 3.5% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

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.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-19-094-03 updated cvss 7.5

Rockwell Automation Stratix 5400/5410/5700/8000/8300 and ArmorStratix 5700

  • Rockwell Automation Allen-Bradley ArmorStratix 5700 <= 15.2(6)E0a Rockwell Automation Allen-Bradley Stratix 5400 <= 15.2(6)E0a Rockwell Automation Allen-Bradley Stratix 5410 <= 15.2(6)E0a Rockwell Automation Allen-Bradley Stratix 5700 <= 15.2(6)E0a Rockwell Automation Allen-Bradley Stratix 8000 <= 15.2(6)E0a Rockwell Automation Allen-Bradley Stratix 8300 < 15.2(4)EA7
    affected: vendor fix, mitigation “FRN 15.2(6)E2a: Allen-Bradley Stratix 5400” rockwellautomation.custhelp.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
last yr.

Exploit prediction

3.52% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.6 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Cisco Cisco IOS Software

Classification

Weakness
  • CWE-399 Resource Management Errors
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.