CVE-2026-32678 | Buffalo Wi-Fi Router Setting authentication bypass

VDB-353823 · CVE-2026-32678 · GCVE-0-2026-32678 BUFFALO WI-FI ROUTER SETTING AUTHENTICATION BYPASS HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.0 $0-$5k 3.58+ Summaryinfo A vulnerability, which was classified as critical, has been found in Buffalo Wi-Fi Router. This affects an unknown function of the component Setting Handler. Performing a manipulation results in authentication bypass. This vulnerability was named CVE-2026-32678. The attack may be initiated remotely. There is no available exploit. Detailsinfo A vulnerability was found in Buffalo Wi-Fi Router (affected version unknown). It has been classified as critical. This affects an unknown functionality of the component Setting Handler. The manipulation with an unknown input leads to a authentication bypass vulnerability. CWE is classifying the issue as CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. This is going to have an impact on integrity, and availability. The summary by CVE is: Authentication bypass issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to alter critical configuration settings without authentication. It is possible to read the advisory at buffalo.jp. This vulnerability is uniquely identified as CVE-2026-32678 since 03/25/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/27/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Router Operating System Vendor Buffalo Name Wi-Fi Router License commercial CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 7.0 VulDB Meta Temp Score: 7.0 VulDB Base Score: 6.5 VulDB Temp Score: 6.5 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.5 CNA Vector (jpcert): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Authentication bypass CWE: CWE-288 / CWE-287 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/25/2026 CVE reserved 03/27/2026 +2 days Advisory disclosed 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Advisory: buffalo.jp Status: Confirmed CVE: CVE-2026-32678 (🔒) GCVE (CVE): GCVE-0-2026-32678 GCVE (VulDB): GCVE-100-353823 Entryinfo Created: 03/27/2026 07:31 Changes: 03/27/2026 07:31 (74) Complete: 🔍 Cache ID: 99:C49:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸