8.8
HIGH CVSS 3.0
CVE-2026-27650
Buffalo Wi-Fi Router OS Command Injection Vulnerability
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.

INFO

Published Date :

March 27, 2026, 6:16 a.m.

Last Modified :

March 27, 2026, 6:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-27650 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.0 HIGH ede6fdc4-6654-4307-a26d-3331c018e2ce
CVSS 3.0 HIGH [email protected]
CVSS 3.0 HIGH MITRE-CVE
CVSS 4.0 HIGH ede6fdc4-6654-4307-a26d-3331c018e2ce
CVSS 4.0 HIGH [email protected]
Solution
Apply vendor updates to prevent OS command execution on affected routers.
  • Update router firmware to the latest version.
  • Apply security patches provided by the vendor.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-27650.

URL Resource
https://jvn.jp/en/jp/JVN83788689/
https://www.buffalo.jp/news/detail/20260323-01.html
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-27650 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-27650 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-27650 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Mar. 27, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V4.0 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
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CWE CWE-78
    Added Reference https://jvn.jp/en/jp/JVN83788689/
    Added Reference https://www.buffalo.jp/news/detail/20260323-01.html
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.