CVE-2026-37100 | Yamaha SR-B30A Sound Bar 2.40 Bluetooth Low Energy improper authentication

VDB-357939 · CVE-2026-37100 · EUVD-2026-23270 YAMAHA SR-B30A SOUND BAR 2.40 BLUETOOTH LOW ENERGY IMPROPER AUTHENTICATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.1 $0-$5k 3.14+ Summaryinfo A vulnerability, which was classified as critical, has been found in Yamaha SR-B30A Sound Bar 2.40. Affected is an unknown function of the component Bluetooth Low Energy. Performing a manipulation results in improper authentication. This vulnerability is cataloged as CVE-2026-37100. The attack must originate from the local network. There is no exploit available. Detailsinfo A vulnerability classified as critical has been found in Yamaha SR-B30A Sound Bar 2.40. This affects an unknown functionality of the component Bluetooth Low Energy. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is: An issue in the Bluetooth Low Energy (BLE) control interface of the Yamaha SR-B30A sound bar firmware 2.40 (Mobile App: Sound Bar Remote / version: 2.40) allows remote attackers within BLE radio range to connect without authentication via the Sound Bar Remote protocol It is possible to read the advisory at gist.github.com. This vulnerability is uniquely identified as CVE-2026-37100 since 04/06/2026. The exploitability is told to be easy. The attack can only be done within the local network. 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 04/16/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23270). Productinfo Vendor Yamaha Name SR-B30A Sound Bar Version 2.40 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.1 VulDB Base Score: 6.3 VulDB Temp Score: 6.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 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: Improper authentication CWE: CWE-287 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Partially 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 04/06/2026 CVE reserved 04/16/2026 +10 days Advisory disclosed 04/16/2026 +0 days VulDB entry created 04/16/2026 +0 days VulDB entry last update Sourcesinfo Advisory: gist.github.com Status: Not defined CVE: CVE-2026-37100 (🔒) GCVE (CVE): GCVE-0-2026-37100 GCVE (VulDB): GCVE-100-357939 EUVD: 🔒 Entryinfo Created: 04/16/2026 18:27 Updated: 04/16/2026 21:54 Changes: 04/16/2026 18:27 (53), 04/16/2026 21:54 (1) Complete: 🔍 Cache ID: 99:DAA:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸