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CVE-2021-20864

Published: Dec 1, 2021Updated: Nov 21, 2024 Sources: CVE List NVDNVD-CWE-Other
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.5%
Top 61.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Improper access control 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 unauthenticated attacker to bypass access restriction, and to start the telnet service and execute an arbitrary OS command via unspecified vectors.

CVSS Vector Breakdown

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

Weaknesses

NVD-CWE-Other

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 →

Exploitability

Official Patch Available

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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