high
7.2
CWE
88 77
Advisory Published
Updated

CVE-2019-1779: Cisco FXOS and NX-OS Software Command Injection Vulnerability

First published: Wed May 15 2019(Updated: )

A vulnerability in the CLI of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system of an affected device with elevated privileges. The vulnerability is due to insufficient validation of arguments passed to certain CLI commands. An attacker could exploit this vulnerability by including malicious input as the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with elevated privileges. An attacker would need valid device credentials to exploit this vulnerability.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Firepower Extensible Operating System<2.4.1.101
Cisco Firepower 4110 Next-Generation Firewall
Cisco Firepower 4112 Firmware
Cisco Firepower 4115
Cisco Firepower 4120 Next-Generation Firewall
Cisco Firepower 4125 firmware
Cisco Firepower 4140 Next-Generation Firewall
Cisco Firepower 4145 firmware
Cisco Firepower 4150 Next-Generation Firewall
Cisco Firepower 9300 firmware
Cisco NX-OS>=5.2<6.2\(25\)
Cisco NX-OS>=7.3<8.1\(1b\)
Cisco NX-OS>=8.2<8.3\(1\)
Cisco MDS 9100
Cisco MDS 9200
Cisco MDS 9500
Cisco MDS 9700
Cisco NX-OS<7.0\(3\)i4\(9\)
Cisco NX-OS>=7.0\(3\)i7<7.0\(3\)i7\(4\)
Cisco Nexus 3016Q Firmware
Cisco Nexus 3048 Firmware
Cisco Nexus 3064x
Cisco Nexus 3064
Cisco Nexus 31108PV-V
Cisco Nexus 31108TC-V Firmware
Cisco Nexus 31128PQ
Cisco Nexus 3132C-Z Firmware
Cisco Nexus 3132Q-XL
Cisco Nexus 3132Q-V Firmware
Cisco Nexus 3132Q-X/3132Q-XL
Cisco Nexus 3164Q Firmware
Cisco Nexus 3172
Cisco Nexus 3172PQ/PQ-XL
Cisco Nexus 3172TQ Firmware
Cisco Nexus 3172TQ-XL
Cisco Nexus 3172TQ-XL Firmware
Cisco Nexus 3232C
Cisco Nexus 3264C-E Firmware
Cisco Nexus 3264Q Firmware
Cisco Nexus 3408-S Firmware
Cisco Nexus 34180YC Firmware
Cisco Nexus 3432D-S Firmware
Cisco Nexus 3464C Firmware
Cisco Nexus 3524-xl
Cisco Nexus 3524-xl
Cisco Nexus 3524-x/xl
Cisco Nexus 3548-X/XL Firmware
Cisco Nexus 3548-X/XL
Cisco Nexus 3548-X/XL
Cisco NX-OS Nexus 9000 Series
Cisco Nexus 92160YC Switch
Cisco Nexus 92300YC Switch
Cisco Nexus 92304qc
Cisco Nexus 92348GC-X Switch
Cisco Nexus 9236c
Cisco Nexus 9272Q Switch
Cisco Nexus
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93120tx
Cisco Nexus 93128tx
Cisco Nexus 93180LC-EX Switch
Cisco Nexus 93180YC-EX
Cisco Nexus 93180YC-FX Firmware
Cisco Nexus 93216TC-FX2 Firmware
Cisco Nexus 93240YC-FX2 Firmware
Cisco Nexus 9332C Firmware
Cisco Nexus 9332pq
Cisco Nexus 93360YC-FX2
Cisco Nexus 9336C-FX2 Firmware
Cisco Nexus N9336PQ-X
Cisco Nexus 9348GC-FXP Firmware
Cisco Nexus 9364C-GX Firmware
Cisco Nexus 9372px
Cisco Nexus 9372PX-E Switch
Cisco Nexus 9372tx
Cisco Nexus 9372TX-E Switch
Cisco Nexus 9396px
Cisco Nexus 9396tx
Cisco NX-OS>=7.0\(3\)<7.0\(3\)f3\(5\)
Cisco Nexus 36180YC-R Firmware
Cisco Nexus 3636C-R Firmware
Cisco Nexus 9504
Cisco Nexus 9508
Cisco Nexus 9516
Cisco NX-OS<7.3\(4\)n1\(1\)
Cisco Nexus 5548P Firmware
Cisco Nexus 5548UP Firmware
Cisco Nexus 5596T Firmware
Cisco Nexus 5596UP Firmware
Cisco Nexus 56128p Firmware
Cisco Nexus 5624Q Firmware
Cisco Nexus 5648q Firmware
Cisco Nexus 5672UP-16G
Cisco Nexus 5696Q Firmware
Cisco NX-OS<6.2\(22\)
Cisco NX-OS>=7.2<7.3\(3\)d1\(1\)
Cisco NX-OS>=8.0<8.3\(1\)
Cisco Nexus 7000
Cisco Nexus 7700 series

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2019-1779?

    CVE-2019-1779 has been rated as a high-severity vulnerability due to its potential for arbitrary command execution with elevated privileges.

  • How do I fix CVE-2019-1779?

    To mitigate CVE-2019-1779, it is recommended to upgrade the affected Cisco FXOS and NX-OS software to the latest patched versions.

  • Who is affected by CVE-2019-1779?

    CVE-2019-1779 affects devices running certain versions of Cisco FXOS and NX-OS software that do not adequately validate input in the command-line interface.

  • What types of devices are impacted by CVE-2019-1779?

    Devices such as Cisco Firepower series and several Cisco Nexus switches with affected NX-OS versions are impacted by CVE-2019-1779.

  • Is CVE-2019-1779 being actively exploited?

    As of now, there are no confirmed active exploits reported for CVE-2019-1779, but the vulnerability presents significant risk if not addressed.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203