CWE
776
Advisory Published
Updated

CVE-2021-1267: Cisco Firepower Management Center XML Entity Expansion Vulnerability

First published: Wed Jan 13 2021(Updated: )

A vulnerability in the dashboard widget of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper restrictions on XML entities. An attacker could exploit this vulnerability by crafting an XML-based widget on an affected server. A successful exploit could cause increased memory and CPU utilization, which could result in a DoS condition.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Firepower Management Center<6.6.1

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Frequently Asked Questions

  • What is the vulnerability ID of this Cisco Firepower Management Center (FMC) Software vulnerability?

    The vulnerability ID is CVE-2021-1267.

  • What is the severity of CVE-2021-1267?

    The severity of CVE-2021-1267 is medium with a CVSS score of 4.3.

  • How does CVE-2021-1267 impact Cisco Firepower Management Center (FMC) Software?

    CVE-2021-1267 allows an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

  • Which version of Cisco Firepower Management Center (FMC) Software is affected by CVE-2021-1267?

    Cisco Firepower Management Center (FMC) Software versions up to and excluding 6.6.1 are affected by CVE-2021-1267.

  • Is there a fix available for CVE-2021-1267?

    Yes, Cisco has released a security advisory with recommendations on how to mitigate the vulnerability. Please refer to the Cisco Security Advisory at the provided reference link for more details.

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