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The username command in Cisco ACE Application Control Engine Module for Catalyst 6500 Switches and 7600 Routers and Cisco ACE 4710 Application Control Engine Appliance stores a cleartext password by default, which allows context-dependent attackers to obtain sensitive information.
Use CWE-310, Cisco vendor hub and Application Control Engine Module product page to widen CVE-2009-0742 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2009-0620, CVE-2009-0622 and CVE-2009-0625 for nearby disclosures in the same product family. Additional editorial context is available in The Weekly Cybersecurity Brief: January 30th, 2026.