Buffer Overflow Vulnerability in ELECOM LAN Routers
CVE-2021-20852

6.8MEDIUM

Key Information:

Vendor
Elecom Co.,ltd.
Status
Elecom Lan Routers
Vendor
CVE Published:
1 December 2021

Summary

A buffer overflow vulnerability exists in certain ELECOM LAN routers, specifically the WRH-733GBK and WRH-733GWH models with firmware versions v1.02.9 and prior. This flaw allows an attacker with network access and administrator privileges to execute arbitrary operating system commands through unspecified vectors, potentially leading to unauthorized actions on the affected device. Users are advised to update their firmware promptly to mitigate the risk associated with this vulnerability.

Affected Version(s)

ELECOM LAN routers WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior

References

https://www.elecom.co.jp/news/security/20211130-01/
x_refsource_MISC
https://jvn.jp/en/jp/JVN88993473/index.html
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CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.