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CVE-2021-20863

Published: Dec 1, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-78
NVD MITRE
8.0CVSSHIGH
EPSS Score
0.9%
Top 46.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

OS command injection vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, WRC-2533GS2-W firmware v1.52 and prior, WRC-1750GS firmware v1.03 and prior, WRC-1750GSV firmware v2.11 and prior, WRC-1900GST firmware v1.03 and prior, WRC-2533GST firmware v1.03 and prior, WRC-2533GSTA firmware v1.03 and prior, WRC-2533GST2 firmware v1.25 and prior, WRC-2533GST2SP firmware v1.25 and prior, WRC-2533GST2-G firmware v1.25 and prior, and EDWRC-2533GST2 firmware v1.25 and prior) allows a network-adjacent authenticated attackers to execute an arbitrary OS command with the root privilege via unspecified vectors.

CVSS Vector Breakdown

AV:AAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-78

Affected Products

ELECOM routersELECOM CO.,LTD.Networking Infrastructure
wrc-1167gst2 firmwareelecomNetworking Infrastructure
wrc-1167gst2a firmwareelecomNetworking Infrastructure
wrc-1167gst2h firmwareelecomNetworking Infrastructure
wrc-2533gs2-b firmwareelecomNetworking Infrastructure
elecom co.,ltd.commercialJPNetworking Infrastructureaka elecom
elecomcommercialJPNetworking Infrastructureaka elecom co., ltd.
and 10 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://www.elecom.co.jp/news/security/20211130-01/
elecom.co.jp
https://jvn.jp/en/vu/JVNVU94527926/index.html
jvn.jp

Timeline

Published
Dec 1, 2021
Last Updated
Nov 21, 2024

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