CVE-2022-34840

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
jpcertCNA
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CVEADP
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CISA-ADPADP
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 18%
VendorProductVersion
buffalowzr-300hp_firmware
𝑥
≤ 2.00
buffalowzr-450hp_firmware
𝑥
≤ 2.00
buffalowzr-600dhp_firmware
𝑥
≤ 2.00
buffalowzr-900dhp_firmware
𝑥
≤ 1.15
buffalohw-450hp-zwe_firmware
𝑥
≤ 2.00
buffalowzr-450hp-cwt_firmware
𝑥
≤ 2.00
buffalowzr-450hp-ub_firmware
𝑥
≤ 2.00
buffalowzr-600dhp2_firmware
𝑥
≤ 1.15
buffalowzr-d1100h_firmware
𝑥
≤ 2.00
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://jvn.jp/en/vu/JVNVU92805279/index.html
https://www.buffalo.jp/news/detail/20221003-01.html
https://jvn.jp/en/vu/JVNVU92805279/index.html
https://www.buffalo.jp/news/detail/20221003-01.html