With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrImageVersion
cwr Image Version
1.3.6.1.4.1.9.10.52.1.2.1.1.9
This represents the version number of this image.
Back to CISCO-WIRELESS-EXP-MIB MIB page.
IPHost Network monitor allows you to monitor cwrImageVersion on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.