Cisco IOS XE Layer 2 resource management

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 classified as problematic was found in Cisco IOS XE. This affects an unknown function of the component Layer 2 Handler. The manipulation results in resource management. This vulnerability is identified as CVE-2021-1621. The attack can only be performed from the local network. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco IOS XE (Router Operating System) (version unknown). It has been classified as critical. Affected is an unknown function of the component Layer 2 Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability.

The weakness was released 09/23/2021 as cisco-sa-quewedge-69BsHUBW. The advisory is available at tools.cisco.com. This vulnerability is traded as CVE-2021-1621 since 11/13/2020. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

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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: Resource management
CWE: CWE-399 / 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

11/13/2020 🔍
09/23/2021 +313 days 🔍
09/23/2021 +0 days 🔍
10/01/2021 +8 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-quewedge-69BsHUBW
Status: Confirmed

CVE: CVE-2021-1621 (🔍)
GCVE (CVE): GCVE-0-2021-1621
GCVE (VulDB): GCVE-100-183246
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 09/23/2021 12:28
Updated: 10/01/2021 14:33
Changes: 09/23/2021 12:28 (49), 10/01/2021 14:33 (1)
Complete: 🔍
Cache ID: 216::103

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