Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would cause a denial of service (DoS) condition on an 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).
Metrics
No CVSS v4.0
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
No CVSS v3.0
Access Vector Adjacent Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
AV:A/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
---|---|
Cisco |
|
Configuration 1 [-]
AND |
|
Configuration 2 [-]
AND |
|
Configuration 3 [-]
AND |
|
Configuration 4 [-]
AND |
|
Configuration 5 [-]
AND |
|
Configuration 6 [-]
AND |
|
Configuration 7 [-]
AND |
|
Configuration 8 [-]
AND |
|
Configuration 9 [-]
AND |
|
Configuration 10 [-]
AND |
|
Configuration 11 [-]
AND |
|
No data.
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2021-04-08T04:05:30.866624Z
Updated: 2024-09-16T22:09:24.727Z
Reserved: 2020-11-13T00:00:00
Link: CVE-2021-1309
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-04-08T04:15:12.063
Modified: 2023-11-07T03:27:55.893
Link: CVE-2021-1309
Redhat
No data.