Metrics
No CVSS v4.0
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required Low
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
No CVSS v3.0
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
The EPSS score is 0.00243.
Exploitation none
Automatable no
Technical Impact partial
Affected Vendors & Products
| Vendors | Products |
|---|---|
|
Cisco
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1000 Integrated Services Router
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1100-4g\/6g Integrated Services Router
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1100-4p Integrated Services Router
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1100-8p Integrated Services Router
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1100 Integrated Services Router
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1101-4p Integrated Services Router
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1101 Integrated Services Router
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1111x-8p Integrated Services Router
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1111x Integrated Services Router
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1120 Integrated Services Router
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1160 Integrated Services Router
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4000 Integrated Services Router
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4221 Integrated Services Router
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4321 Integrated Services Router
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4331 Integrated Services Router
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4351 Integrated Services Router
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4431 Integrated Services Router
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4451-x Integrated Services Router
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4461 Integrated Services Router
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|
Configuration 1 [-]
| AND |
|
No data.
No data.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-21353 | A vulnerability in the Link Layer Discovery Protocol (LLDP) message parser of Cisco IOS Software and Cisco IOS XE Software could allow an attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to improper initialization of a buffer. An attacker could exploit this vulnerability via any of the following methods: An authenticated, remote attacker could access the LLDP neighbor table via either the CLI or SNMP while the device is in a specific state. An unauthenticated, adjacent attacker could corrupt the LLDP neighbor table by injecting specific LLDP frames into the network and then waiting for an administrator of the device or a network management system (NMS) managing the device to retrieve the LLDP neighbor table of the device via either the CLI or SNMP. An authenticated, adjacent attacker with SNMP read-only credentials or low privileges on the device CLI could corrupt the LLDP neighbor table by injecting specific LLDP frames into the network and then accessing the LLDP neighbor table via either the CLI or SNMP. A successful exploit could allow the attacker to cause the affected device to crash, resulting in a reload of the device. |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Thu, 07 Nov 2024 22:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Projects
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Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2024-11-07T21:59:20.710Z
Reserved: 2021-06-15T00:00:00
Link: CVE-2021-34703
Updated: 2024-08-04T00:19:48.150Z
Status : Modified
Published: 2021-09-23T03:15:16.970
Modified: 2024-11-21T06:10:59.470
Link: CVE-2021-34703
No data.
OpenCVE Enrichment
No data.
EUVD