CVE-2018-0395

Name: CVE-2018-0395
Creator: NVD / NIST
Published: 2018-10-17T19:29:00.303+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.86%

Last modified Jun 17, 2026

CVE-2018-0395 is a vulnerability of currently unknown severity. A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when the device unexpectedly reloads. The vulnerability is due to improper input validation of certain type, length, value (TLV) fields of the LLDP frame header. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

Description

A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when the device unexpectedly reloads. The vulnerability is due to improper input validation of certain type, length, value (TLV) fields of the LLDP frame header. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface on the targeted device. A successful exploit could allow the attacker to cause the switch to reload unexpectedly.

Metrics

EPSS Probability

0.86%

53.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Nx-Os	6.0\(4\)
Cisco	Nx-Os	6.1\(3\)s2
Cisco	Firepower Extensible Operating System	r231
Cisco	Nx-Os	r231
Cisco	Nx-Os	12.3\(1e\)
Cisco	Nx-Os	3.2\(3d\)c

References

http://www.securityfocus.com/bid/105674Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041919Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-fxnx-os-dosVendor Advisory
http://www.securityfocus.com/bid/105674Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041919Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-fxnx-os-dosVendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2018-0395?

How severe is CVE-2018-0395?

Severity scoring for CVE-2018-0395 is pending analysis. The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0395?

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-2018-0395?

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

Scan your code now

Source: NVD / NIST