Medium severity6.5NVD Advisory· Published Dec 7, 2022· Updated Jun 17, 2026
CVE-2022-34840
CVE-2022-34840
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
13- cpe:2.3:o:buffalo:hw-450hp-zwe_firmware:*:*:*:*:*:*:*:*Range: <=2.00
- cpe:2.3:o:buffalo:wzr-450hp-cwt_firmware:*:*:*:*:*:*:*:*Range: <=2.00
- cpe:2.3:o:buffalo:wzr-450hp-ub_firmware:*:*:*:*:*:*:*:*Range: <=2.00
- Range: <=2.00
- Range: <=2.00
- Range: <=2.00
- Range: 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.
Patches
Vulnerability mechanics
References
2- www.buffalo.jp/news/detail/20221003-01.htmlnvdPatchVendor Advisory
- jvn.jp/en/vu/JVNVU92805279/index.htmlnvdThird Party Advisory
News mentions
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