What’s Vulnerable › Vulnerabilities

CVE-2017-6633

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-05-22 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability in the TCP throttling process of Cisco UCS C-Series Rack Servers 3.0(0.234) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient rate-limiting protection. An attacker could exploit this vulnerability by sending a high rate of TCP SYN packets to a specific TCP listening port on an affected device. An exploit could allow the attacker to cause a specific TCP listening port to stop accepting new connections, resulting in a DoS condition. Cisco Bug IDs: CSCva65544.

Affected products

• Cisco Unified Computing System (Managed): 3.0(0.234)

References

• http://www.securityfocus.com/bid/98525
• http://www.securitytracker.com/id/1038513
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-ucsc
• http://www.securityfocus.com/bid/98525
• http://www.securitytracker.com/id/1038513
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-ucsc

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