SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-27650

OS Command Injection vulnerability exists in BUFFALO Wi-Fi router products.

HIGH 8.6EPSS 0.92%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.92%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

OS Command Injection vulnerability exists in BUFFALO Wi-Fi router products. If this vulnerability is exploited, an arbitrary OS command may be executed on the products.

CVSS 4.0
8.6 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.92% probability · 58th percentile
CISA KEV
Not listed
Weakness
CWE-78
Affected
buffalo/wcr-1166dhpl firmware · buffalo/wsr3600be4-kh firmware · buffalo/wsr3600be4p firmware · buffalo/wxr-1750dhp firmware · buffalo/wxr-1750dhp2 firmware · buffalo/wxr18000be10p firmware · buffalo/wxr-1900dhp firmware · buffalo/wxr-1900dhp2 firmware · buffalo/wxr-1900dhp3 firmware · buffalo/wxr-5950ax12 firmware · buffalo/wxr-6000ax12b firmware · buffalo/wxr-6000ax12p firmware · buffalo/wxr-6000ax12s firmware · buffalo/wzr-1166dhp firmware · buffalo/wzr-1166dhp2 firmware · buffalo/wzr-1750dhp firmware · buffalo/wzr-1750dhp2 firmware · buffalo/wzr-s1750dhp firmware · buffalo/wrm-d2133hp firmware · buffalo/wrm-d2133hs firmware · +26 more
Source
vultures@jpcert.or.jp

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.