CWE
119 120
Advisory Published
Updated

CVE-2021-1300: Cisco SD-WAN Buffer Overflow Vulnerabilities

First published: Wed Jan 20 2021(Updated: )

Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS XE SD-WAN
Cisco Sd-wan Firmware=18.3.8
Cisco Sd-wan Firmware=18.4.4
Cisco Sd-wan Firmware=19.2.1
Cisco Sd-wan Firmware=19.2.99
Cisco Sd-wan Vsmart Controller Firmware
Cisco Vedge 100 Router
Cisco Vedge 1000 Router
Cisco Vedge 100b Router
Cisco Vedge 100m Router
Cisco Vedge 100wm Router
Cisco Vedge 2000 Router
Cisco Vedge 5000 Router
Cisco Vedge Cloud Router
Cisco Catalyst SD-WAN Manager
Cisco Sd-wan Vbond Orchestrator

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Frequently Asked Questions

  • What is CVE-2021-1300?

    CVE-2021-1300 is a vulnerability in Cisco SD-WAN products that allows an unauthenticated remote attacker to execute attacks against an affected device.

  • What is the severity of CVE-2021-1300?

    CVE-2021-1300 has a severity rating of 9.8, which is considered critical.

  • Which software is affected by CVE-2021-1300?

    Cisco IOS XE SD-WAN, Cisco SD-WAN Firmware 18.3.8, 18.4.4, 19.2.1, 19.2.99, Cisco SD-WAN Vsmart Controller Firmware are affected by CVE-2021-1300.

  • How can I fix CVE-2021-1300?

    To fix CVE-2021-1300, Cisco recommends updating to the latest available software version.

  • Where can I find more information about CVE-2021-1300?

    You can find more information about CVE-2021-1300 on the Cisco Security Advisory page.

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