What is CVE-2026-33280?

CVE-2026-33280 is a high-severity vulnerability in Buffalo Inc. Wi-fi Router Products, classified under Hidden Functionality. CVSS score: 7.2/10. Published 2026-03-27.

How severe is CVE-2026-33280?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in Buffalo Inc. Wi-fi Router Products

CVE-2026-33280

Hidden functionality issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to gain access to the product’s debugging functionality, resulting in the execution of arbitrary OS commands.

EPSS: 0.001 (28.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Buffalo Inc. Wi-fi Router Products — versions See "References" section

Weakness classification (CWE)

CWE-912 — Hidden Functionality

References

www.buffalo.jp/news/detail/20260323-01.html
jvn.jp/en/jp/JVN83788689/

Frequently asked questions

What is CVE-2026-33280?: CVE-2026-33280 is a high-severity vulnerability in Buffalo Inc. Wi-fi Router Products, classified under Hidden Functionality. CVSS score: 7.2/10. Published 2026-03-27.
How severe is CVE-2026-33280?: High severity. CVSS v3 base score is 7.2 out of 10.