RCE in Buffalo Wsr-1166dhp3
CVE-2021-20731
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Buffalo Wsr-1166dhp3
- Buffalo Wsr-1166dhp3 Firmware
- Buffalo Wsr-1166dhp4
- Buffalo Wsr-1166dhp4 Firmware
- Buffalo Inc. Wsr-1166dhp3 And Wsr-1166dhp4 — versions WSR-1166DHP3 firmware Ver.1.16 and prior and WSR-1166DHP4 firmware Ver.1.02 and prior
Weakness classification (CWE)
References
- www.buffalo.jp/news/detail/20210531-01.html (Vendor Advisory)
- jvn.jp/en/vu/JVNVU92862829/index.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20731?
- CVE-2021-20731 is a high-severity vulnerability in Buffalo Wsr-1166dhp3, classified under OS Command Injection. CVSS score: 8.8/10. Published 2021-06-09.
- How severe is CVE-2021-20731?
- High severity. CVSS v3 base score is 8.8 out of 10.