EUVD-2026-41419
GHSA-hmx6-cprg-h49v
Severity by source
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Physical access required (AV:P), no privileges or interaction needed once connected; integrity and availability fully compromised via firmware replacement, no confidentiality impact.
Primary rating from Vendor (icscert).
CVSS VectorVendor: icscert
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Improper cryptographic signature verification in the CubeSpace CW0057 Reaction Wheel firmware (versions prior to 5.0.20) permits an attacker with physical access to flash arbitrary, unsigned firmware onto the device without any authentication. This affects a safety-critical spacecraft attitude control component used in CubeSat and small satellite missions, where unauthorized firmware replacement could cause mission-critical failures including attitude loss or uncontrolled spacecraft behavior. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Physical access to the CW0057 hardware is the sole prerequisite - no authentication, no network access, and no elevated privileges are required once physical contact with the firmware update interface is established. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 3.3 accurately reflects the dominant constraint: physical access (AV:P) is required, which sharply limits the attacker population in most operational scenarios. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | During satellite integration at a launch facility or test environment, an insider or supply chain actor with physical access connects to the CW0057 firmware update port (e.g., via USB or UART interface), submits a crafted or unsigned firmware image that exploits the absent/weak JWT signature check, and successfully flashes malicious firmware - potentially introducing logic that causes attitude control failures or enables persistent backdoor behavior on-orbit. A proof-of-concept for this bypass exists, lowering the technical barrier for exploitation. |
| Remediation | The primary remediation is to update CW0057 firmware to version 5.0.20 or later, as confirmed by the vulnerability description. … Detailed patch versions, workarounds, and compensating controls in full report. |
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