CVE-2021-20731

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-09 · updated 2026-06-17
Weakness: CWE-78

Description

WSR-1166DHP3 firmware Ver.1.16 and prior and WSR-1166DHP4 firmware Ver.1.02 and prior allow an attacker to execute arbitrary OS commands with root privileges via unspecified vectors.

Affected products

Buffalo Wsr-1166Dhp3 Firmware: through 1.16
Buffalo Wsr-1166Dhp4 Firmware: through 1.02

References

https://jvn.jp/en/vu/JVNVU92862829/index.html
https://www.buffalo.jp/news/detail/20210531-01.html
https://jvn.jp/en/vu/JVNVU92862829/index.html
https://www.buffalo.jp/news/detail/20210531-01.html

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