CVE-2015-2058: c2s/c2s.c in Jabber Open Source Server 2.3.2 and earlier truncates data without ensuring it remains valid U...

Security readout for executives and security teams

CVE-2015-2058 affects Jabber Open Source Server 2.3.2 and earlier. An authenticated remote user could use a malformed Jabber ID to trigger unsafe UTF-8 truncation and potentially read system memory. The available sources do not provide a CVSS score, named patch, or evidence of active exploitation. Exposure is most likely where legacy jabberd2 or Jabber Open Source Server 2.3.2 or earlier remains deployed, especially with the client-to-server component reachable by authenticated users. Environments without this software, or using confirmed non-affected versions, are unlikely to be exposed. Treat this as a legacy exposure cleanup item with moderate urgency. It is not listed as actively exploited in the provided sources, but memory disclosure in an externally reachable messaging service can affect confidentiality and may support follow-on attacks. Mitigation focus: Identify any jabberd2 or Jabber Open Source Server deployments.; Check upstream jabberd2 guidance for fixed versions or official remediation.; Upgrade or retire affected 2.3.2-and-earlier servers where feasible..

Prepared

Jun 13, 2026, 22:22 UTC (UTC+00:00)

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