CVE-2015-4303: Cisco TelePresence Video Communication Server (VCS) X8.5.2 allows remote authenticated users to execute arb...

Security readout for executives and security teams

Cisco VCS X8.5.2 has a command injection issue that lets a remote authenticated user run operating-system commands as the low-privileged nobody account. This is not unauthenticated compromise, but it can still affect confidentiality, integrity, and service reliability on exposed collaboration infrastructure. Exposure is most likely where Cisco TelePresence VCS X8.5.2 is deployed and its web interface is reachable by non-administrative or broad authenticated user populations. The bundle does not identify other affected versions or products. Treat this as a high-priority legacy infrastructure issue if Cisco VCS X8.5.2 is present. The impact is serious, but urgency depends on whether authenticated access is broadly reachable and whether Cisco remediation has already been applied. Mitigation focus: Review Cisco advisory 40433 for fixed releases, workarounds, and upgrade guidance.; Identify and prioritize any Cisco VCS X8.5.2 systems for remediation.; Restrict VCS web interface access to trusted management networks..

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.