CVE-2022-34840: Medium severity buffalo wzr-300hp firmware vulnerability
Use of hard-coded credentials vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to alter?configuration settings of the device. The affected products/versions are as follows: WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, and WZR-D1100H firmware Ver. 2.00 and earlier.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2022-34840?
CVE-2022-34840 is a vulnerability that allows a network-adjacent attacker to alter configuration settings of Buffalo network devices using hard-coded credentials.
Which Buffalo network devices are affected by CVE-2022-34840?
The following Buffalo network devices are affected: WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, WZR-D1100H firmware Ver. 2.00 and earlier.
What is the severity of CVE-2022-34840?
CVE-2022-34840 has a severity rating of 6.5 (Medium).
How can an attacker exploit CVE-2022-34840?
An attacker can exploit CVE-2022-34840 by using the hard-coded credentials to alter configuration settings of the vulnerable Buffalo network devices.
Is there a fix available for CVE-2022-34840?
Yes, Buffalo has released patches to address CVE-2022-34840. Users should update their firmware to the latest version provided by Buffalo.