CVE-2017-3804

MEDIUM

Cisco Nexus 5000, 6000, 7000 Series Switches - Unauthenticated Denial of Service via IS-IS Protocol Packet Processing

Title source: llm
STIX 2.1

Description

A vulnerability in Intermediate System-to-Intermediate System (IS-IS) protocol packet processing of Cisco Nexus 5000, 6000, and 7000 Series Switches software could allow an unauthenticated, adjacent attacker to cause a reload of the affected device. Switches in the FabricPath domain crash because of an __inst_001__isis_fabricpath hap reset when processing a crafted link-state packet. More Information: CSCvc45002. Known Affected Releases: 7.1(3)N1(2.1) 7.1(3)N1(3.12) 7.3(2)N1(0.296) 8.0(1)S2. Known Fixed Releases: 6.2(18)S11 7.0(3)I5(1.170) 7.0(3)I5(2) 7.1(4)N1(0.4) 7.1(4)N1(1b) 7.1(5)N1(0.986) 7.1(5)N1(1) 7.2(3)D1(0.8) 7.3(2)N1(0.304) 7.3(2)N1(1) 8.0(0.96)S0 8.0(1) 8.0(1)E1 8.0(1)S4 8.3(0)CV(0.788).

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1037658
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/95638

Scores

CVSS v3 6.1
EPSS 0.0054
EPSS Percentile 41.9%
Attack Vector ADJACENT_NETWORK
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Details

Status published
Products (5)
cisco/nx-os 7.1\(3\)n1\(2.1\)
cisco/nx-os 7.1\(3\)n1\(3.12\)
cisco/nx-os 7.3\(2\)n1\(0.296\)
cisco/nx-os 8.0\(1\)s2
n/a/Cisco Nexus 5000, 6000, 7000 Cisco Nexus 5000, 6000, 7000
Published Jan 26, 2017
Tracked Since Feb 18, 2026