CVE-2007-5556: Unspecified vulnerability in the Avaya VoIP Handset allows remote attackers to cause a denial of service (r...

Security readout for executives and security teams

This CVE tracks a reported remote denial-of-service issue in an Avaya VoIP Handset. Crafted packets may cause a handset reboot. The public record is unusually thin and explicitly says the original disclosure was a vague pre-advisory with no actionable detail. Exposure is limited to organizations running Avaya VoIP Handset devices, but exact models and versions are not identified. Risk is higher where handset traffic is reachable from untrusted or broadly accessible network segments. Treat this as a tracking and exposure-verification item, not an emergency based on current evidence. Give it more attention in call centers, security desks, healthcare, or sites where handset availability directly affects operations. Mitigation focus: Check Avaya and IRM guidance for affected handset models and firmware.; Restrict handset management and VoIP traffic to trusted network segments.; Avoid exposing VoIP handset interfaces to untrusted networks..

Prepared

Jun 29, 2026, 02:29 UTC (UTC+00:00)

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