What’s Vulnerable › Vulnerabilities

CVE-2017-3804

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-01-26 · updated 2026-06-17

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).

Affected products

• Cisco NX-OS: 7.1(3)n1(2.1), 7.1(3)n1(3.12), 7.3(2)n1(0.296), 8.0(1)s2

References

• http://www.securityfocus.com/bid/95638
• http://www.securitytracker.com/id/1037658
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-nexus
• http://www.securityfocus.com/bid/95638
• http://www.securitytracker.com/id/1037658
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-nexus

Get alerted when CVE-2017-3804 or the next vulnerability affects your stack