CVE-2018-0209

Name: CVE-2018-0209
Creator: NVD / NIST
Published: 2018-03-08T07:29:00.533+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.7/10EPSS 1.65%

Last modified Jun 17, 2026

CVE-2018-0209 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. A vulnerability in the Simple Network Management Protocol (SNMP) subsystem communication channel through the Cisco 550X Series Stackable Managed Switches could allow an authenticated, remote attacker to cause the device to reload unexpectedly, causing a denial of service (DoS) condition. The device nay need to be manually reloaded to recover. EPSS estimates a 1.65% chance of exploitation in the next 30 days.

Description

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem communication channel through the Cisco 550X Series Stackable Managed Switches could allow an authenticated, remote attacker to cause the device to reload unexpectedly, causing a denial of service (DoS) condition. The device nay need to be manually reloaded to recover. The vulnerability is due to lack of proper input throttling of ingress SNMP traffic over an internal interface. An attacker could exploit this vulnerability by sending a crafted, heavy stream of SNMP traffic to the targeted device. An exploit could allow the attacker to cause the device to reload unexpectedly, causing a DoS condition. Cisco Bug IDs: CSCvg22135.

Metrics

CVSS 3.1

7.7/10

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

EPSS Probability

1.65%

73.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Cisco	Small Business 500 Series Stackable Managed Switches Firmware	2.2.5.68
Cisco	Small Business 500 Series Stackable Managed Switches Firmware	2.3.0.130

References

http://www.securityfocus.com/bid/103406Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-550xVendor Advisory
http://www.securityfocus.com/bid/103406Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-550xVendor Advisory

Timeline

Published: Mar 8, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0209?

How severe is CVE-2018-0209?

CVE-2018-0209 has a CVSS score of 7.7/10 (HIGH severity). The EPSS model estimates a 1.65% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0209?

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-2018-0209?

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

Scan your code now

Source: NVD / NIST