PatchSiren cyber security CVE debrief
CVE-2026-13743 CubeSpace CVE debrief
The CubeSpace CW0057 Reaction Wheel, a critical component in various CubeSat missions, is vulnerable to an Improper Verification of Cryptographic Signature vulnerability. This vulnerability, identified as CVE-2026-13743, affects firmware versions prior to 5.0.20 and could allow an attacker with physical access to the product to upload arbitrary malicious firmware to the device without authentication. The vulnerability has a CVSS score of 6.1 and a severity of MEDIUM, indicating a moderate level of risk. Organizations using CubeSpace CW0057 Reaction Wheel devices should be aware of this vulnerability and take steps to update to firmware version 5.0.20 or later and enable cryptographic secure boot functionality. This vulnerability highlights the importance of keeping firmware up to date and implementing secure boot functionality to prevent malicious firmware uploads. It also emphasizes the need for organizations to be aware of potential vulnerabilities in their systems and take proactive steps to mitigate them.
- Vendor
- CubeSpace
- Product
- CW0057 Reaction Wheel
- CVSS
- MEDIUM 6.1
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-02
- Original CVE updated
- 2026-07-02
- Advisory published
- 2026-07-02
- Advisory updated
- 2026-07-02
Who should care
Organizations using CubeSpace CW0057 Reaction Wheel devices should be aware of this vulnerability and take steps to update to firmware version 5.0.20 or later and enable cryptographic secure boot functionality. This vulnerability could allow an attacker with physical access to the product to upload arbitrary malicious firmware to the device without authentication. Organizations should verify device firmware integrity using CRC-32 checks and implement physical security measures to prevent unauthorized access to devices. Additionally, organizations should review compensating controls for exposed systems while remediation is scheduled and verified. This may involve reviewing relevant monitoring, detection, and logs for exposed assets that need extra review. Tracking exceptions, retesting remediated assets, and closing the item only after evidence is documented is also crucial. The vulnerability has a CVSS score of 6.1 and a severity of MEDIUM, indicating a moderate level of risk. Therefore, it is essential for organizations to prioritize updating to firmware version 5.0.20 or later and enabling cryptographic secure boot functionality to prevent potential attacks. This should be done through normal change control procedures where exposure is confirmed. It is also recommended to confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. A thorough review of the supplied official advisory or CVE record is necessary to validate affected scope, severity, and vendor guidance. This will help ensure that the necessary steps are taken to mitigate the vulnerability and prevent potential attacks. The goal is to ensure that the vulnerability is properly addressed and that the risk of exploitation is minimized. By taking these steps, organizations can help protect their systems and prevent potential attacks. This vulnerability highlights the importance of keeping firmware up to date and implementing secure boot functionality to prevent malicious firmware uploads. It also emphasizes the need for organizations to be aware of potential vulnerabilities in their systems and take proactive steps to mitigate them. By prioritizing the
Technical summary
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. The vulnerability has a CVSS score of 6.1 and a severity of MEDIUM. Organizations using CubeSpace CW0057 Reaction Wheel should prioritize updating to firmware version 5.0.20 or later and enabling cryptographic secure boot functionality.
Defensive priority
Organizations using CubeSpace CW0057 Reaction Wheel should prioritize updating to firmware version 5.0.20 or later and enabling cryptographic secure boot functionality.
Recommended defensive actions
- Update to firmware version 5.0.20 or later
- Enable cryptographic secure boot functionality
- Verify device firmware integrity using CRC-32 checks
- Implement physical security measures to prevent unauthorized access to devices
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
- Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
- Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
Evidence notes
The source item from CISA CSAF provides details on the vulnerability in CubeSpace CW0057 Reaction Wheel firmware versions prior to 5.0.20, which are vulnerable to an Improper Verification of Cryptographic Signature vulnerability. This vulnerability could allow an attacker with physical access to the product to upload arbitrary malicious firmware to the device without authentication. Organizations should verify device firmware integrity using CRC-32 checks and implement physical security measures to prevent unauthorized access to devices.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-13743 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-13743
CVE Program - Official CVE Program record with source-provided CVE metadata.
-
CVE-2026-13743 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-13743
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Source item URL
Unverified legacy reference
URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-183-02.json
cisa_csaf
-
Source reference
Unverified legacy reference
URL: https://www.cisa.gov/news-events/ics-advisories/icsa-26-183-02
Reference
-
Source reference
Unverified legacy reference
URL: https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
Reference
-
Source reference
Unverified legacy reference
URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
Reference
-
Source reference
Unverified legacy reference
URL: https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
Reference
-
Source reference
Unverified legacy reference
URL: https://www.cisa.gov/topics/industrial-control-systems
Reference
-
Source reference
Unverified legacy reference
URL: https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf
Reference
-
Source reference
Unverified legacy reference
URL: https://www.cisa.gov/uscert/ncas/tips/ST04-014
Reference
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.