high
8.5
CWE
119
Advisory Published
Updated

CVE-2021-1509: Cisco SD-WAN vEdge Software Buffer Overflow Vulnerabilities

First published: Thu May 06 2021(Updated: )

Multiple vulnerabilities in Cisco SD-WAN vEdge Software could allow an attacker to execute arbitrary code as the root user or cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Vedge 100 Firmware>=20.4<20.4.1
Cisco Vedge 100 Firmware>=20.5<20.5.1
Cisco Vedge 100 Firmware=19.2.99
Cisco Vedge 100
Cisco Vedge 1000 Firmware>=20.4<20.4.1
Cisco Vedge 1000 Firmware>=20.5<20.5.1
Cisco Vedge 1000 Firmware=19.2.99
Cisco Vedge 1000
Cisco Vedge 100b Firmware>=20.4<20.4.1
Cisco Vedge 100b Firmware>=20.5<20.5.1
Cisco Vedge 100b Firmware=19.2.99
Cisco Vedge 100b
Cisco Vedge 100m Firmware>=20.4<20.4.1
Cisco Vedge 100m Firmware>=20.5<20.5.1
Cisco Vedge 100m Firmware=19.2.99
Cisco Vedge 100m
Cisco Vedge 100wm Firmware>=20.4<20.4.1
Cisco Vedge 100wm Firmware>=20.5<20.5.1
Cisco Vedge 100wm Firmware=19.2.99
Cisco Vedge 100wm
Cisco Vedge 2000 Firmware>=20.4<20.4.1
Cisco Vedge 2000 Firmware>=20.5<20.5.1
Cisco Vedge 2000 Firmware=19.2.99
Cisco Vedge 2000
Cisco Vedge 5000 Firmware>=20.4<20.4.1
Cisco Vedge 5000 Firmware>=20.5<20.5.1
Cisco Vedge 5000 Firmware=19.2.99
Cisco Vedge 5000
Cisco Vedge Cloud Firmware>=20.4<20.4.1
Cisco Vedge Cloud Firmware>=20.5<20.5.1
Cisco Vedge Cloud Firmware=19.2.99
Cisco Vedge Cloud

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Reference Links

Frequently Asked Questions

  • What is CVE-2021-1509?

    CVE-2021-1509 refers to multiple vulnerabilities in Cisco SD-WAN vEdge Software that could allow an attacker to execute arbitrary code as the root user or cause a denial of service (DoS) condition on an affected device.

  • What is the severity of CVE-2021-1509?

    CVE-2021-1509 has a severity rating of 7.5 (high).

  • Which software versions are affected by CVE-2021-1509?

    Cisco SD-WAN vEdge Software versions 19.2.99, 20.4, and 20.5 are affected by CVE-2021-1509.

  • How can an attacker exploit CVE-2021-1509?

    An attacker can exploit CVE-2021-1509 by executing arbitrary code as the root user or causing a denial of service (DoS) condition on an affected device.

  • How can I fix CVE-2021-1509?

    To fix CVE-2021-1509, users should upgrade to a fixed version of Cisco SD-WAN vEdge Software, as mentioned in the Cisco Security Advisory.

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