CVE-2015-4301: Cisco NX-OS on Nexus 9000 devices 11.1(1c) allows remote authenticated users to cause a denial of service (...

Security readout for executives and security teams

This issue can make a Cisco Nexus 9000 switch hang when an authenticated remote user copies large files to the device filesystem. It is a denial-of-service risk, not described as data theft or remote code execution. Business urgency depends on whether Nexus 9000 devices run NX-OS 11.1(1c) and who can access device file operations. Exposure is most likely in environments with Cisco Nexus 9000 switches on NX-OS 11.1(1c), especially where administrators or automation accounts can copy files to local device storage. The provided sources do not indicate unauthenticated exposure or broader affected versions. Treat this as a targeted availability risk for affected network infrastructure. Prioritize validation in data center or core switching environments, then follow Cisco guidance. Urgency increases if many users or automation systems have authenticated management access. Mitigation focus: Check Cisco advisory and Bug ID CSCuu77225 for fixed software or vendor workarounds.; Restrict management access to trusted administrative networks and accounts.; Review and limit accounts allowed to copy files to device filesystems..

Prepared

Jun 13, 2026, 22:03 UTC (UTC+00:00)

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