CVE-2004-0740: The HTTP server in Lexmark T522 and possibly other models allows remote attackers to cause a denial of serv...

Security readout for executives and security teams

CVE-2004-0740 describes a Lexmark printer web server flaw that can crash, reload, or hang the device when it receives an overly long Host header. For executives, the main risk is printer management disruption, not confirmed data theft. The affected scope is incomplete: Lexmark T522 is named, with “possibly other models.” Exposure is most likely where legacy Lexmark printer HTTP management interfaces remain reachable from user networks, remote sites, or the internet. The source bundle does not confirm exact affected firmware versions or the full model list beyond Lexmark T522 and possible other models. Prioritize as an asset hygiene and operational resilience issue unless exposed printers support critical workflows. Escalate if affected devices are internet-reachable, shared across business-critical teams, or cannot be access-controlled. Evidence is insufficient to claim emergency exploitation or data compromise. Mitigation focus: Identify Lexmark T522 devices and similar legacy Lexmark printers in inventory.; Check Lexmark or IBM X-Force guidance for confirmed affected models and fixes.; Restrict printer HTTP management access to trusted administrative networks..

Prepared

Jun 30, 2026, 04:32 UTC (UTC+00:00)

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