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Vulnerability record · CVE-2026-33280 · published 27 March 2026

CVE-2026-33280: Buffalo wcr-1166dhpl firmware vulnerability

Buffalo · Wcr 1166dhpl Firmware

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.

8.6 CVSS 4.0 High EPSS 0.67% · top 49.9% CWE-912 · CWE-912
8.6CVSS 4.0 base score
0.67%EPSS exploitation probability, 30 days
NoNot in CISA KEV
46Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/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:

Affected products

46 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://jvn.jp/en/jp/JVN83788689/ Third Party Advisory
https://www.buffalo.jp/news/detail/20260323-01.html Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-33280), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.