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CVE Record

CVE-2018-0305: 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 cause a denial of service (DoS) condition on the affected device. The vulnerability exists because the affected software insufficiently validates 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 force a NULL pointer dereference and cause a DoS condition. 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: CSCvd69966, CSCve02435, CSCve04859, CSCve41590, CSCve41593, CSCve41601.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2018-0305 can let an unauthenticated remote attacker crash affected Cisco security, switching, fabric extender, and UCS fabric interconnect devices when Cisco Fabric Services is enabled. For executives, the main risk is service disruption in core network or security infrastructure, not data theft based on the provided sources. Exposure is limited to listed Cisco FXOS/NX-OS platforms configured to use Cisco Fabric Services, including Firepower 4100/9300, MDS 9000, Nexus families, Nexus 9500 R-Series modules, and UCS 6100/6200/6300 fabric interconnects. Treat this as a high-priority infrastructure availability issue where affected Cisco platforms support critical segmentation, firewalling, storage networking, or data-center switching. Confirm exposure before emergency action because the provided bundle lacks CVSS and patch details. Mitigation focus: Review the Cisco advisory for affected releases and fixed software guidance.; Identify devices configured to use Cisco Fabric Services.; Prioritize remediation on core switching, firewall, and fabric interconnect assets..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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CWE-476: Exact CWE lookup

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cve · low confidence lookup

CVE-2018-0305 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.

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 links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-476 · source CWE mapping

NULL Pointer Dereference

NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.