CVE-2015-6393

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-10-06 · updated 2026-06-17
Weakness: CWE-399

Description

Cisco NX-OS 4.1 through 7.3 and 11.0 through 11.2 on Nexus 2000, 3000, 3500, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote attackers to cause a denial of service (device crash) via malformed IPv4 DHCP packets to the DHCPv4 relay agent, aka Bug IDs CSCuq39250, CSCus21733, CSCus21739, CSCut76171, and CSCux67182.

Affected products

Cisco NX-OS: 4.2(1)n1(1), 4.2(1)n2(1), 4.2(1)n2(1a), 5.0(2)n1(1), 5.0(2)n2(1), 5.0(2)n2(1a) (+98)

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-dhcp2
http://www.securityfocus.com/bid/93419
http://www.securitytracker.com/id/1036949
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-dhcp2
http://www.securityfocus.com/bid/93419
http://www.securitytracker.com/id/1036949

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