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CVE-2018-0304: A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software coul...

A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to read sensitive memory content, create a denial of service (DoS) condition, or execute arbitrary code as root. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packet headers. 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 overflow or buffer overread condition in the Cisco Fabric Services component, which could allow the attacker to read sensitive memory content, create a DoS condition, or execute arbitrary code as root. This vulnerability affects the following if configured to use Cisco Fabric Services: 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: CSCvd69951, CSCve02459, CSCve02461, CSCve02463, CSCve02474, CSCve04859.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw affects Cisco network and security infrastructure that uses Cisco Fabric Services. A remote unauthenticated attacker could send a crafted CFS packet and potentially crash the device, read sensitive memory, or run code as root. Business urgency depends on whether listed Cisco platforms are deployed with CFS enabled. Exposure is limited to listed Cisco Firepower 4100/9300, MDS 9000, Nexus, and UCS Fabric Interconnect platforms configured to use Cisco Fabric Services. This is primarily a network infrastructure and data-center exposure issue, not an application-layer vulnerability. Treat as urgent for affected Cisco infrastructure because the stated worst case is root-level code execution or device outage. First confirm whether CFS is used, then follow Cisco’s advisory for remediation planning. Mitigation focus: Identify Cisco FXOS and NX-OS devices in scope.; Check whether Cisco Fabric Services is configured or enabled.; Review the Cisco advisory for affected and fixed software guidance..

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Potential ATT&CK relevance

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Execution behavior lookup

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CVE-2018-0304 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aCisco FXOS and NX-OS unknownCisco FXOS and NX-OS unknownListed
Weakness

CWE details

CWE-20

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