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Vulnerability record · CVE-2026-32678 · published 27 March 2026

CVE-2026-32678: Buffalo wzr-s900dhp firmware authentication bypass via alternate path vulnerability

Buffalo · Wzr S900dhp Firmware

Authentication bypass issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to alter critical configuration settings without authentication.

8.7 CVSS 4.0 High EPSS 0.51% · top 58.6% CWE-288 · Authentication bypass via alternate path
8.7CVSS 4.0 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
46Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Authentication bypass issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to alter critical configuration settings without authentication.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/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.

8.7CVE-2026-32669Buffalo wcr-1166dhpl firmware code injection vulnerabilityCode injection vulnerability exists in BUFFALO Wi-Fi router products. If this vulnerability is exploited, an arbitrary code may be executed on the pr…EPSS 0.48%8.6CVE-2026-27650Buffalo wcr-1166dhpl firmware os command injection vulnerabilityOS Command Injection vulnerability exists in BUFFALO Wi-Fi router products. If this vulnerability is exploited, an arbitrary OS command may be execut…EPSS 1.4%8.6CVE-2026-33280Buffalo wcr-1166dhpl firmware vulnerabilityHidden functionality issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to gain access to the product’s debugging functionali…EPSS 0.67%6.9CVE-2026-33366Buffalo wcr-1166dhpl firmware missing authentication for critical function vulnerabilityMissing authentication for critical function vulnerability in BUFFALO Wi-Fi router products may allow an attacker to forcibly reboot the product with…EPSS 0.55%10.0CVE-2026-20079Cisco Secure Firewall Management Center authentication bypass to rootCisco Secure Firewall Management Center (FMC) Software contains an authentication bypass caused by an improper system process created at boot time. A…KEVEPSS 88%analysed9.3CVE-2026-19490Citrix NetScaler ADC and Gateway authentication bypass via alternate pathNetScaler ADC and NetScaler Gateway contain an authentication bypass via an alternate path or channel (CWE-288). The flaw is remotely reachable witho…KEVEPSS 7.0%analysed8.2CVE-2026-18556N-able N-central authentication bypass via alternate pathN-able N-central contains an authentication bypass (CWE-288) that lets an attacker reach protected functionality through an alternate path or channel…KEVEPSS 7.9%analysed8.2CVE-2026-18577N-able N-central incomplete patch enables auth bypass and account takeoverAn incomplete fix for CVE-2026-18556 leaves an alternate-path authentication bypass in N-able N-central through version 2026.3.1. Because the origina…KEVEPSS 15%analysed

Source: NIST National Vulnerability Database (record CVE-2026-32678), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.