CVE-2018-0303

N/A

Published: June 21, 2018 at 11:00 AM UTC

Updated: June 17, 2026 at 01:30 AM UTC

84 products affected across 1 vendorNx OSFirepower Extensible Operating SystemNexus 9508

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Severity

N/A

Exploit prediction

EPSS 1%

SSVC

No known exploit

Description

A vulnerability in the Cisco Discovery Protocol component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a denial of service (DoS) condition on the affected device. The vulnerability exists because of insufficiently validated Cisco Discovery Protocol packet headers. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to a Layer 2 adjacent affected device. A successful exploit could allow the attacker to cause a buffer overflow that could allow the attacker to execute arbitrary code as root or cause a DoS condition on the affected device. This vulnerability affects the following if configured to use Cisco Discovery Protocol: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 1000V Series Switches, Nexus 1100 Series Cloud Services Platforms, 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 Fabric Switches in Application Centric Infrastructure (ACI) mode, 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: CSCvc22202, CSCvc22205, CSCvc22208, CSCvc88078, CSCvc88150, CSCvc88159, CSCvc88162, CSCvc88167.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Firepower Extensible Operating System · Cisco

95%

1.1 ≤ v < 1.1.4.1792.0 ≤ v < 2.0.1.1532.1.1 ≤ v < 2.1.1.862.2.1 ≤ v < 2.2.1.702.2.2 ≤ v < 2.2.2.17

Affected range stops below 1.1.4.179, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.0.1.153, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.1.1.86, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.2.1.70, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.2.2.17, so it looks safe — our inference, not a vendor statement

cisco-firepower-4110 (environment) · cisco-firepower-4120 (environment) · cisco-firepower-4140 (environment) · cisco-firepower-4150 (environment) · cisco-firepower-9300-security-appliance (environment)

Nx OS · Cisconpm

95%

3.1(3a)a 7.0(0)hsk(0.357)7.0(3)i4(7)7.0(3)i7(1)8.0(1)8.1(0.2)s0 8.8(0.1)8.8(3.5)s0

cisco-nexus-172tq-xl (environment) · cisco-nexus-2148t (environment) · cisco-nexus-2224tp-ge (environment) · cisco-nexus-2232pp-10ge (environment) · cisco-nexus-2232tm-10ge (environment) · cisco-nexus-2232tm-e-10ge (environment) · cisco-nexus-2248pq-10ge (environment) · cisco-nexus-2248tp-e (environment) · cisco-nexus-2248tp-ge (environment) · cisco-nexus-3016 (environment) · cisco-nexus-3048 (environment) · cisco-nexus-3064-32t (environment) · cisco-nexus-3064-t (environment) · cisco-nexus-3064-x (environment) · cisco-nexus-3100-v (environment) · cisco-nexus-31128pq (environment) · cisco-nexus-3132c-z (environment) · cisco-nexus-3132q (environment) · cisco-nexus-3132q-x (environment) · cisco-nexus-3132q-xl (environment) · cisco-nexus-3164q (environment) · cisco-nexus-3172pq (environment) · cisco-nexus-3172pq-xl (environment) · cisco-nexus-3172tq (environment) · cisco-nexus-3172tq-32t (environment) · cisco-nexus-3232c (environment) · cisco-nexus-3264c-e (environment) · cisco-nexus-3264q (environment) · cisco-nexus-34180yc (environment) · cisco-nexus-3524-x (environment) · cisco-nexus-3524-xl (environment) · cisco-nexus-3548 (environment) · cisco-nexus-3548-x (environment) · cisco-nexus-3548-xl (environment) · cisco-nexus-3636c-r (environment) · cisco-nexus-5000 (environment) · cisco-nexus-5010 (environment) · cisco-nexus-5020 (environment) · cisco-nexus-5548p (environment) · cisco-nexus-5548up (environment) · cisco-nexus-5596t (environment) · cisco-nexus-5596up (environment) · cisco-nexus-56128p (environment) · cisco-nexus-5624q (environment) · cisco-nexus-5648q (environment) · cisco-nexus-5672up (environment) · cisco-nexus-5696q (environment) · cisco-nexus-6001p (environment) · cisco-nexus-6001t (environment) · cisco-nexus-7000 (environment) · cisco-nexus-7700 (environment) · cisco-nexus-92160yc-x (environment) · cisco-nexus-92304qc (environment) · cisco-nexus-9236c (environment) · cisco-nexus-9272q (environment) · cisco-nexus-93108tc-ex (environment) · cisco-nexus-93120tx (environment) · cisco-nexus-93128tx (environment) · cisco-nexus-93180yc-ex (environment) · cisco-nexus-9332pq (environment) · cisco-nexus-9372px (environment) · cisco-nexus-9372tx (environment) · cisco-nexus-9396px (environment) · cisco-nexus-9396tx (environment) · cisco-nexus-9504 (environment) · cisco-nexus-9508 (environment) · cisco-nexus-9516 (environment) · cisco-nexus-c36180yc-r (environment) · cisco-nexus-n9k-c9508-fm-r (environment) · cisco-nexus-n9k-x9636c-r (environment) · cisco-nexus-n9k-x9636q-r (environment) · cisco-ucs-6120xp (environment) · cisco-ucs-6140xp (environment) · cisco-ucs-6248up (environment) · cisco-ucs-6296up (environment) · cisco-ucs-6324 (environment) · cisco-ucs-6332 (environment)

Firepower 4110 · Ciscodevice

80%

All versions

Firepower 4120 · Ciscodevice

80%

All versions

Firepower 4140 · Ciscodevice

80%

All versions

Firepower 4150 · Ciscodevice

80%

All versions