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CVE-2021-3512

Published: Apr 28, 2021Updated: Nov 21, 2024 Sources: CVE List NVDNVD-CWE-Other
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.9%
Top 46.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Improper access control vulnerability in Buffalo broadband routers (BHR-4GRV firmware Ver.1.99 and prior, DWR-HP-G300NH firmware Ver.1.83 and prior, HW-450HP-ZWE firmware Ver.1.99 and prior, WHR-300HP firmware Ver.1.99 and prior, WHR-300 firmware Ver.1.99 and prior, WHR-G301N firmware Ver.1.86 and prior, WHR-HP-G300N firmware Ver.1.99 and prior, WHR-HP-GN firmware Ver.1.86 and prior, WPL-05G300 firmware Ver.1.87 and prior, WZR-450HP-CWT firmware Ver.1.99 and prior, WZR-450HP-UB firmware Ver.1.99 and prior, WZR-HP-AG300H firmware Ver.1.75 and prior, WZR-HP-G300NH firmware Ver.1.83 and prior, WZR-HP-G301NH firmware Ver.1.83 and prior, WZR-HP-G302H firmware Ver.1.85 and prior, WZR-HP-G450H firmware Ver.1.89 and prior, WZR-300HP firmware Ver.1.99 and prior, WZR-450HP firmware Ver.1.99 and prior, WZR-600DHP firmware Ver.1.99 and prior, WZR-D1100H firmware Ver.1.99 and prior, FS-HP-G300N firmware Ver.3.32 and prior, FS-600DHP firmware Ver.3.38 and prior, FS-R600DHP firmware Ver.3.39 and prior, and FS-G300N firmware Ver.3.13 and prior) allows remote unauthenticated attackers to bypass access restriction and to start telnet service and execute arbitrary OS commands with root privileges via unspecified vectors.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-Other

Affected Products

Buffalo broadband routersBUFFALO INC.
Embedded
Hardware Firmware / storage-nas
bhr-4grv firmwarebuffaloNetworking Infrastructure
dwr-hp-g300nh firmwarebuffaloNetworking Infrastructure
hw-450hp-zwe firmwarebuffaloNetworking Infrastructure
whr-300hp firmwarebuffaloNetworking Infrastructure
buffalo inc.commercialJPHardware Firmwareaka wnc01wh, buffalo wi-fi router products, wsr-2533dhp2
buffalocommercialTWNetworking Infrastructureaka wzr-600dhp firmware, wzr-1750dhp2 firmware, wzr-900dhp firmware
and 20 more affected products View all →

Exploitability

Official Patch Available

References

https://www.buffalo.jp/news/detail/20210427-01.html
buffalo.jp
https://jvn.jp/en/vu/JVNVU99235714/index.html
jvn.jp

Timeline

Published
Apr 28, 2021
Last Updated
Nov 21, 2024

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