Vulnerability details

CVE-2026-27650

BUFFALO Wi-Fi router products

CVSS 4.0

8.6High

Official 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 scores

Score	Version	Source	Vector
8.6High	4.0	CVEProject cvelistV5 (CNA) (jpcert)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`
8.8High	3.0	CVEProject cvelistV5 (CNA) (jpcert)	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
BUFFALO INC.	BUFFALO Wi-Fi router products	See "References" section	CVEProject cvelistV5 (CNA)

References and advisories

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Details

Published: 2026-03-27
Last updated: 2026-03-27
State: Published
Assigner (CNA): jpcert

Exploit prediction (EPSS)

0.93%

Probability of exploitation in 30 days

61%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-78
Improper neutralization of special elements used in an OS command ('OS Command Injection')