Vulnerability identifier: #VU67888

Vulnerability risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-40966

CWE-ID: CWE-288

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
WCR-300
Hardware solutions / Routers & switches, VoIP, GSM, etc
WHR-HP-G300N
Hardware solutions / Routers & switches, VoIP, GSM, etc
WHR-HP-GN
Hardware solutions / Routers & switches, VoIP, GSM, etc
WPL-05G300
Hardware solutions / Routers & switches, VoIP, GSM, etc
WRM-D2133HP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WRM-D2133HS
Hardware solutions / Routers & switches, VoIP, GSM, etc
WTR-M2133HP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WTR-M2133HS
Hardware solutions / Routers & switches, VoIP, GSM, etc
WXR-1900DHP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WXR-1900DHP2
Hardware solutions / Routers & switches, VoIP, GSM, etc
WXR-1900DHP3
Hardware solutions / Routers & switches, VoIP, GSM, etc
WXR-5950AX12
Hardware solutions / Routers & switches, VoIP, GSM, etc
WXR-6000AX12B
Hardware solutions / Routers & switches, VoIP, GSM, etc
WXR-6000AX12S
Hardware solutions / Routers & switches, VoIP, GSM, etc
WZR-300HP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WZR-450HP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WZR-600DHP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WZR-HP-AG300H
Hardware solutions / Routers & switches, VoIP, GSM, etc
WZR-HP-G302H
Hardware solutions / Routers & switches, VoIP, GSM, etc
WZR-900DHP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WZR-1750DHP2
Hardware solutions / Routers & switches, VoIP, GSM, etc
WEM-1266
Hardware solutions / Routers & switches, VoIP, GSM, etc
WEM-1266WP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WLAE-AG300N
Hardware solutions / Routers & switches, VoIP, GSM, etc
FS-G300N
Hardware solutions / Routers & switches, VoIP, GSM, etc
FS-HP-G300N
Hardware solutions / Routers & switches, VoIP, GSM, etc
FS-R600DHP
Hardware solutions / Routers & switches, VoIP, GSM, etc
FS-600DHP
Hardware solutions / Routers & switches, VoIP, GSM, etc
BHR-4GRV
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor:

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A remote attacker on the local network can bypass authentication for the target device.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://jvn.jp/en/vu/JVNVU92805279/index.html
http://www.buffalo.jp/news/detail/20221003-01.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.