CVE-2026-0842
Unknown Unknown - Not Provided
Authentication Bypass in Flycatcher Toys smART Sketcher BLE Interface

Publication date: 2026-01-11

Last updated on: 2026-04-29

Assigner: VulDB

Description
A flaw has been found in Flycatcher Toys smART Sketcher up to 2.0. This affects an unknown part of the component Bluetooth Low Energy Interface. This manipulation causes missing authentication. The attack can only be done within the local network. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Meta Information
Published
2026-01-11
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-01-11
EPSS Evaluated
2026-06-14
NVD
CVE-2026-0842
EUVD
EUVD-2026-1900
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
flycatcher_toys smart_sketcher to 2.0 (inc)
Helpful Resources
Exploitability
CWE
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KEV
KEV Icon
CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-306 The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
Attack-Flow Graph
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Executive Summary

This vulnerability is a flaw in the Bluetooth Low Energy Interface component of Flycatcher Toys smART Sketcher up to version 2.0. It causes missing authentication, meaning that the device does not properly verify the identity of devices trying to connect via Bluetooth Low Energy. The attack exploiting this flaw can only be performed within the local network. The exploit has been published and may be used by attackers.

Impact Analysis

The vulnerability can allow an attacker within the local network to connect to the device without proper authentication, potentially leading to unauthorized access or manipulation of the device. This could compromise the confidentiality, integrity, and availability of the device's data or functionality.

Detection Guidance

This vulnerability can be detected by scanning for Bluetooth Low Energy (BLE) devices, specifically the Flycatcher Toys smART Sketcher devices, and attempting to connect to their BLE interface without authentication. Since the device accepts connections without pairing or PIN, a simple BLE scan followed by connection attempts to writable BLE characteristics can reveal the vulnerability. Tools like 'bluetoothctl' on Linux or 'gatttool' can be used to scan and connect. For example, using 'bluetoothctl' you can scan for devices, then connect and attempt to write to characteristics without authentication. Specific commands include: 'bluetoothctl scan on' to find devices, 'bluetoothctl connect <device_address>' to connect, and using 'gatttool' to interact with BLE characteristics. Additionally, the public proof-of-concept exploit script available on GitHub (Resource 3) can be used to test the vulnerability. [1, 3]

Mitigation Strategies

Immediate mitigation steps include discontinuing use of the affected Flycatcher Toys smART Sketcher devices up to version 2.0, as no vendor patches or countermeasures are currently available. Since the vulnerability cannot be remotely exploited and requires proximity, restricting physical access to the device and disabling Bluetooth when not in use can reduce risk. Replacing the affected product with a secure alternative is recommended. There are no known software mitigations or patches from the vendor, who did not respond to the disclosure. [2]

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