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CVE-2018-0310

CRITICAL

A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to obtain sensitive information from memory or cause a denial of service (DoS) condition on the affected product. The vulnerability exists because the affected software insufficiently validates header values in Cisco Fabric Services packets. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overread condition, which could allow the attacker to obtain sensitive information from memory or cause a DoS condition on the affected product. This vulnerability affects Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69957, CSCve02435, CSCve04859, CSCve41536, CSCve41538, CSCve41559.

Published: Jun 21, 2018 Modified: Jun 17, 2026
CWE-399 CWE-125

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (25)

Vendor Product Version
cisco nx-os 7.0\(0\)hsk\(0.357\)
cisco nx-os 8.1\(0.2\)s0
cisco nx-os 8.8\(0.1\)
cisco nx-os 8.0\(1\)
cisco nx-os 8.8\(3.5\)s0
cisco nx-os 7.0\(3\)i4\(7\)
cisco nx-os 7.0\(3\)i7\(1\)
cisco nx-os 7.0\(0\)hsk\(0.357\)
cisco nx-os 8.1\(0.2\)s0
cisco nx-os 8.8\(0.1\)
cisco nx-os 7.0\(0\)hsk\(0.357\)
cisco nx-os 8.1\(0.2\)s0
cisco nx-os 8.8\(0.1\)
cisco nx-os 3.1\(3a\)a
cisco nx-os 9.9\(0.902\)
cisco firepower_extensible_operating_system * ≥ 1.1 < 1.1.4.179
cisco firepower_extensible_operating_system * ≥ 2.0 < 2.0.1.153
cisco firepower_extensible_operating_system * ≥ 2.1.1 < 2.1.1.86
cisco firepower_extensible_operating_system * ≥ 2.2.1 < 2.2.1.70
cisco firepower_extensible_operating_system * ≥ 2.2.2 < 2.2.2.17

…and 5 more

GitHub Security Advisory GHSA-hvrm-fpw8-36qp

A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 4.15%

Top 10% most likely to be exploited

Threat Score 40.4 / 100

Data Sources

NVD EPSS GitHub