CVE-2006-1354: Unspecified vulnerability in FreeRADIUS 1.0.0 up to 1.1.0 allows remote attackers to bypass authentication...

Security readout for executives and security teams

This vulnerability affects old FreeRADIUS 1.0.0 through 1.1.0 deployments. A remote attacker could potentially bypass authentication or crash the RADIUS server through insufficient validation in EAP-MSCHAPv2 handling. For organizations still running these versions, the business risk is unauthorized network access or authentication service disruption. Exposure is most likely where legacy FreeRADIUS 1.0.0-1.1.0 is still deployed and EAP-MSCHAPv2 is enabled for network access authentication. Modern maintained distributions are less likely exposed, but inherited appliances or unmanaged RADIUS servers should be checked. Prioritize remediation for any internet-reachable or network-critical legacy FreeRADIUS server. The vulnerability can affect both access control and service availability, making it material for VPN, Wi-Fi, and enterprise network authentication environments. Mitigation focus: Identify all FreeRADIUS servers and confirm installed versions.; Upgrade FreeRADIUS packages according to vendor or distribution security advisories.; If patching is delayed, review vendor guidance for temporary risk reduction..

Prepared

Jun 29, 2026, 13:35 UTC (UTC+00:00)

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