CVE-2016-4478: Buffer overflow in the xmlrpc_char_encode function in modules/transport/xmlrpc/xmlrpclib.c in Atheme before...

Security readout for executives and security teams

CVE-2016-4478 is a remotely triggerable denial-of-service flaw in Atheme before 7.2.7. A bug in XMLRPC response encoding can overflow a buffer and crash the service. The main business risk is service disruption, not confirmed data theft or code execution from the supplied sources. Exposure is most likely in Atheme deployments older than 7.2.7, especially where XMLRPC functionality is enabled or reachable. The provided affected-product metadata is incomplete, so confirm installed package names and versions through local inventory and distro advisories. Treat this as a service-availability issue. It should be remediated in normal vulnerability maintenance, faster for internet-facing or mission-critical Atheme deployments. There is no supplied evidence of active exploitation or data compromise. Mitigation focus: Upgrade Atheme to 7.2.7 or later where upstream packages are used.; Install fixed Debian or openSUSE packages where those distributions manage Atheme.; Review vendor and distro advisories for package-specific remediation details..

Prepared

Jun 13, 2026, 14:22 UTC (UTC+00:00)

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