What’s Vulnerable › Vulnerabilities

CVE-2018-0209

• Severity: high (CVSS 7.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-03-08 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• Cisco 550X Series Stackable Managed Switches: 2.2.5.68, 2.3.0.130

References

• http://www.securityfocus.com/bid/103406
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-550x
• http://www.securityfocus.com/bid/103406
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-550x

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