CubeSpace CW0057 Reaction Wheel

Summary

A vulnerability in CubeSpace CW0057 Reaction Wheel firmware versions prior to 5.0.20 allows attackers with physical access to upload malicious firmware. While exploitation requires direct physical access and the device is recoverable, CubeSpace has released firmware version 5.0.20 with optional secure boot capabilities to mitigate the risk.

Full text

ICS Advisory CubeSpace CW0057 Reaction Wheel Release DateJuly 02, 2026 Alert CodeICSA-26-183-02 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to upload arbitrary malicious firmware to the device. The following versions of CubeSpace CW0057 Reaction Wheel are affected: CW0057 Reaction Wheel CVSS Vendor Equipment Vulnerabilities v3 6.1 CubeSpace CubeSpace CW0057 Reaction Wheel Improper Verification of Cryptographic Signature Background Critical Infrastructure Sectors: Communications Countries/Areas Deployed: Worldwide Company Headquarters Location: South Africa Vulnerabilities Expand All + CVE-2026-13743 CubeSpace CW0057 Reaction Wheel firmware versions prior to 5.0.20 are vulnerable to an Improper Verification of Cryptographic Signature vulnerability. This could allow an attacker with physical access to the product to upload arbitrary malicious firmware to the device without authentication. View CVE Details Affected Products CubeSpace CW0057 Reaction Wheel Vendor:CubeSpace Product Version:CubeSpace CW0057 Reaction Wheel: <firmware_5.0.20 Product Status:known_affected Remediations Vendor fixCubeSpace has released the following firmware versions for users to enable: Firmware version 5.0.20. Firmware version 5.0.20 introduces the capability for cryptographically verified secure boot; however, this protection is not enabled by default. Users must activate signed‑boot functionality, particularly the fully immutable mode, to achieve full security. MitigationCubeSpace acknowledges the finding. The CW0057 reaction wheel authenticates firmware updates with a CRC-32 integrity check, which confirms image integrity but does not verify the source of an image. Exploitation requires direct physical access to the device and is not exploitable remotely. A device affected by this method remains recoverable: the bootloader operates independently of the application firmware and can reload known-good, CubeSpace-supplied images, so an affected unit cannot be permanently disabled by this method. Starting with firmware version 5.0.20, CubeSpace offers optional cryptographic secure boot of varying security levels which customers can enable. Given the physical-access prerequisite and the availability of recovery, CubeSpace assesses the practical risk as low. Relevant CWE: CWE-347 Improper Verification of Cryptographic Signature Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.1 MEDIUM CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H 4.0 3.3 LOW CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:P Acknowledgments Anthony Rose reported this vulnerability to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely. Revision History Initial Release Date: 2026-07-02 Date Revision Summary 2026-07-02 1 Initial Publication Legal Notice and Terms of Use This product is provided subject to this Notification and this Privacy & Use policy. Tags Sector: Communications Sector Topics: Industrial Control System Vulnerabilities, Industrial Control Systems Please share your thoughts We recently updated our anonymous product survey; we welcome your feedback. Related Advisories Jul 02, 2026 ICS Advisory | ICSA-26-183-03 Gardyn IoT Hub Jul 02, 2026 ICS Advisory | ICSA-26-183-01 ST Engineering iDirect iQ-Series Terminals Jun 30, 2026 ICS Advisory | ICSA-26-181-01 Mitsubishi Electric MELSOFT Update Manager SW1DND-UDM-M Jun 30, 2026 ICS Advisory | ICSA-26-181-04 Schneider Electric EasyLogic T150 and Saitel DP RTU

Indicators of Compromise

• cve — CVE-2026-13743

Entities