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[email protected]NVD:CVE-2021-34775

HistoryOct 06, 2021 - 8:15 p.m.

CVE-2021-34775

2021-10-0620:15:14

CWE-120

[email protected]

web.nvd.nist.gov

2.9 Low

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:A/AC:M/Au:N/C:N/I:P/A:N

4.3 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

0.001 Low

EPSS

Percentile

29.5%

JSON

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.

Affected configurations

NVD

Node

ciscobusiness_220-8t-e-2gMatch-

AND

ciscobusiness_220-8t-e-2g_firmwareRange≤1.2.0.6

Node

ciscobusiness_220-8p-e-2gMatch-

AND

ciscobusiness_220-8p-e-2g_firmwareRange≤1.2.0.6

Node

ciscobusiness_220-8fp-e-2gMatch-

AND

ciscobusiness_220-8fp-e-2g_firmwareRange≤1.2.0.6

Node

ciscobusiness_220-16t-2gMatch-

AND

ciscobusiness_220-16t-2g_firmwareRange≤1.2.0.6

Node

ciscobusiness_220-16p-2gMatch-

AND

ciscobusiness_220-16p-2g_firmwareRange≤1.2.0.6

Node

ciscobusiness_220-24t-4gMatch-

AND

ciscobusiness_220-24t-4g_firmwareRange≤1.2.0.6

Node

ciscobusiness_220-24p-4gMatch-

AND

ciscobusiness_220-24p-4g_firmwareRange≤1.2.0.6

Node

ciscobusiness_220-24fp-4gMatch-

AND

ciscobusiness_220-24fp-4g_firmwareRange≤1.2.0.6

Node

ciscobusiness_220-48t-4g_firmwareRange≤1.2.0.6

AND

ciscobusiness_220-48t-4gMatch-

Node

ciscobusiness_220-48p-4g_firmwareRange≤1.2.0.6

AND

ciscobusiness_220-48p-4gMatch-

Node

ciscobusiness_220-24t-4x_firmwareRange≤1.2.0.6

AND

ciscobusiness_220-24t-4xMatch-

Node

ciscobusiness_220-24p-4x_firmwareRange≤1.2.0.6

AND

ciscobusiness_220-24p-4xMatch-

Node

ciscobusiness_220-24fp-4x_firmwareRange≤1.2.0.6

AND

ciscobusiness_220-24fp-4xMatch-

Node

ciscobusiness_220-48t-4x_firmwareRange≤1.2.0.6

AND

ciscobusiness_220-48t-4xMatch-

Node

ciscobusiness_220-48p-4x_firmwareRange≤1.2.0.6

AND

ciscobusiness_220-48p-4xMatch-

Node

ciscobusiness_220-48fp-4x_firmwareRange≤1.2.0.6

AND

ciscobusiness_220-48fp-4xMatch-

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb220-lldp-multivuls-mVRUtQ8T

2.9 Low

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:A/AC:M/Au:N/C:N/I:P/A:N

4.3 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

0.001 Low

EPSS

Percentile

29.5%

JSON

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