CVE-2017-6655

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-06-13 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability in the Fibre Channel over Ethernet (FCoE) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when an FCoE-related process unexpectedly reloads. This vulnerability affects Cisco NX-OS Software on the following Cisco devices when they are configured for FCoE: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches. More Information: CSCvc91729. Known Affected Releases: 8.3(0)CV(0.833). Known Fixed Releases: 8.3(0)ISH(0.62) 8.3(0)CV(0.944) 8.1(1) 8.1(0.8)S0 7.3(2)D1(0.47).

Affected products

Cisco Mds 9000 Nx-Os: 7.3(1)d1(1)
Cisco NX-OS: 8.0(1)s2, 8.3(0)cv(0.833)
Cisco Nx-Os For Nexus 5500 Platform Switches: 7.3(1)n1(1)
Cisco Nx-Os For Nexus 5600 Platform Switches: 7.3(1)n1(1)
Cisco Nx-Os For Nexus 7700 Series Switches: 8.0(1)(ed)

References

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