CVE-2004-0459: The Clear Channel Assessment (CCA) algorithm in the IEEE 802.11 wireless protocol, when using DSSS transmis...

Security readout for executives and security teams

This is a denial-of-service weakness in IEEE 802.11 wireless behavior when DSSS encoding is used. A nearby attacker could make the radio channel appear busy, stopping devices from transmitting. The issue affects availability, not confidentiality or integrity, but it can disrupt Wi-Fi-dependent operations. Exposure is most plausible where legacy IEEE 802.11 DSSS or 802.11b-style operation remains enabled and wireless availability is business-critical. The bundle lists affected product and version as n/a, so product-specific exposure requires vendor and configuration review. Treat this as an availability risk for legacy or compatibility-focused wireless environments. Prioritize review if business operations, safety workflows, point-of-sale, or industrial processes depend on older Wi-Fi without wired fallback. Mitigation focus: Check current wireless vendor advisories for supported mitigations or firmware guidance.; Inventory and retire legacy DSSS or 802.11b operation where feasible.; Reduce business reliance on affected Wi-Fi for critical workflows..

Prepared

Jun 30, 2026, 05:56 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.