Vulnerability Details CVE-2021-34780
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 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 27.4%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 7.9
References
Products affected by CVE-2021-34780
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cpe:2.3:h:cisco:business_220-16p-2g:-
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cpe:2.3:h:cisco:business_220-16t-2g:-
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cpe:2.3:h:cisco:business_220-24fp-4g:-
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cpe:2.3:h:cisco:business_220-24fp-4x:-
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cpe:2.3:h:cisco:business_220-24p-4g:-
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cpe:2.3:h:cisco:business_220-24p-4x:-
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cpe:2.3:h:cisco:business_220-24t-4g:-
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cpe:2.3:h:cisco:business_220-24t-4x:-
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cpe:2.3:h:cisco:business_220-48fp-4x:-
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cpe:2.3:h:cisco:business_220-48p-4g:-
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cpe:2.3:h:cisco:business_220-48p-4x:-
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cpe:2.3:h:cisco:business_220-48t-4g:-
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cpe:2.3:h:cisco:business_220-48t-4x:-
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cpe:2.3:h:cisco:business_220-8fp-e-2g:-
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cpe:2.3:h:cisco:business_220-8p-e-2g:-
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cpe:2.3:h:cisco:business_220-8t-e-2g:-
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cpe:2.3:o:cisco:business_220-16p-2g_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-16t-2g_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-24fp-4g_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-24fp-4x_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-24p-4g_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-24p-4x_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-24t-4g_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-24t-4x_firmware:*
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cpe:2.3:o:cisco:business_220-48fp-4x_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-48p-4g_firmware:*
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cpe:2.3:o:cisco:business_220-48p-4x_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-48t-4g_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-48t-4x_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-8fp-e-2g_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-8p-e-2g_firmware:1.2.0.6
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cpe:2.3:o:cisco:business_220-8t-e-2g_firmware:1.2.0.6