CVE-2026-27650

| EUVD-2026-16543 HIGH
2026-03-27 jpcert
8.6
CVSS 4.0
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CVSS Vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
A
Scope
X

Lifecycle Timeline

3
EUVD ID Assigned
Mar 27, 2026 - 06:00 euvd
EUVD-2026-16543
Analysis Generated
Mar 27, 2026 - 06:00 vuln.today
CVE Published
Mar 27, 2026 - 05:24 nvd
HIGH 8.6

Tags

Command Injection

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.

Analysis

Remote OS command injection in BUFFALO Wi-Fi router products allows unauthenticated attackers to execute arbitrary operating system commands with user interaction required. The vulnerability affects multiple BUFFALO Wi-Fi router models as confirmed by CPE designation and carries a CVSS score of 8.8 (High severity). …

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Remediation

Within 24 hours: Identify and inventory all BUFFALO Wi-Fi router models in production using network discovery tools and cross-reference against official BUFFALO CPE advisory listings. Within 7 days: Isolate affected routers to a monitored network segment; document business criticality and failover options for each device; contact BUFFALO support for patch availability timeline and interim guidance. …

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Priority Score

43
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +43
POC: 0

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CVE-2026-27650 vulnerability details – vuln.today
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