Cisco IOS/IOS XE/IOS XR/NX-OS Unidirectional Link Detection denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco IOS, IOS XE, IOS XR and NX-OS. Affected is an unknown function of the component Unidirectional Link Detection. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2021-34714. The attack can only be done within the local network. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Cisco IOS, IOS XE, IOS XR and NX-OS (Router Operating System) (affected version unknown) and classified as critical. This vulnerability affects an unknown functionality of the component Unidirectional Link Detection. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was released 09/23/2021 as cisco-sa-ios-nxos-xr-udld-dos-W5hGHgtQ. The advisory is available at tools.cisco.com. This vulnerability was named CVE-2021-34714 since 06/15/2021. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.4
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/15/2021 🔍
09/23/2021 +100 days 🔍
09/23/2021 +0 days 🔍
10/01/2021 +8 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-ios-nxos-xr-udld-dos-W5hGHgtQ
Status: Confirmed

CVE: CVE-2021-34714 (🔍)
GCVE (CVE): GCVE-0-2021-34714
GCVE (VulDB): GCVE-100-183226
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 09/23/2021 09:18
Updated: 10/01/2021 12:46
Changes: 09/23/2021 09:18 (49), 10/01/2021 12:46 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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