Certain Cypress (and Broadcom) Wireless Combo chips such as CYW43455, when a 2021-01-26 Bluetooth firmware update is not present, allow a Bluetooth outage via a "Spectra" attack.
CVSS v4.0 Metrics
Exploitability
Attack VectorAdjacent
ComplexityLow
RequirementsPresent
PrivilegesNone
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 5.2 → 6.8 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 5.2 |
Published: 2024-11-10
