cisco-sa-sb220-lldp-multivuls-mVRUtQ8T

csafUScisco_csaf

Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities

view advisory published 2021-10-06

Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business 220 Series Smart Switches. An unauthenticated, adjacent attacker could perform the following: Execute code on the affected device or cause it to reload unexpectedly Cause LLDP database corruption on the affected device For more information about these vulnerabilities, see the Details ["#details"] section of this advisory. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). Cisco has released firmware updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

01

describes (6)

Related CVEs.

IDseverity exploitable
CVE-2021-34780UShigh8.8—
Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business 220 Series Smart Switches. An unauthenticated, adjacent attacker…
CVE-2021-34779UShigh8.8—
Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business 220 Series Smart Switches. An unauthenticated, adjacent attacker…
CVE-2021-34778USmedium4.3—
Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business 220 Series Smart Switches. An unauthenticated, adjacent attacker…
CVE-2021-34777USmedium4.3—
Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business 220 Series Smart Switches. An unauthenticated, adjacent attacker…
CVE-2021-34776USmedium4.3—
Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business 220 Series Smart Switches. An unauthenticated, adjacent attacker…
CVE-2021-34775USmedium4.3—
Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business 220 Series Smart Switches. An unauthenticated, adjacent attacker…
02

references

External citations — patches, advisories, analysis.

03

remediations (12)

  • FixedCisco Small Business 200 Series Smart Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business 200 Series Smart Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business 200 Series Smart Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business 220 Series Smart Plus Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business 220 Series Smart Plus Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business 220 Series Smart Plus Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business Smart and Managed Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business Smart and Managed Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business Smart and Managed Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business Smart and Managed Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business Smart and Managed Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
  • FixedCisco Small Business Smart and Managed Switches

    Cisco has released software updates that address this vulnerability.

    https://software.cisco.com
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