The vendor has published 4 unique mention(s) for this bug: 1. Users might fail to log in to the downgraded NetScaler appliance if the following sequence of conditions is met: 1. You perform one of the following steps: After upgrading to the current build, you add a system user or change the password of an existing system user, and save the configuration. Provision a new VPX, BLX, or CPX instance with the current build. 2. Downgrade the appliance to one of the following builds: 13.0-47.x or earlier 12.1-56.x or earlier 11.1-64.x or earlier To view the list of users affected after the downgrade, at the command prompt, type: query ns config -changedpassword [-config <full path of the configuration file (ns.conf)>] Workaround: Reset the password of the affected users. For more information, see [How to reset root administrator (nsroot) password] ( https://docs.citrix.com/en-us/citrix-adc/13/system/ns-ag-aa-intro-wrapper-con/ns-ag-aa-reset-default-amin-pass-tsk.html ). *Note: *If you are downgrading a previously upgraded build, then while downgrading use the backed up configuration file (ns.conf) of the earlier build to avoid this issue. 2. Users might fail to log in to the downgraded Citrix ADC appliance if the following sequence of conditions is met: You perform one of the following steps: After upgrading to the current build, you add a system user or change the password of an existing system user, and save the configuration. Provision a new VPX, BLX, or CPX instance with the current build. Downgrade the appliance to one of the following builds: 13.0-47.x or earlier 12.1-56.x or earlier 11.1-64.x or earlier To view the list of users affected after the downgrade, at the command prompt, type: `query ns config -changedpassword [-config <full path of the configuration file (ns.conf)>] ` Workaround: Reset the password of the affected users. For more information, see [How to reset root administrator (nsroot) password] ( https://docs.citrix.com/en-us/citrix-adc/13/system/ns-ag-aa-intro-wrapper-con/ns-ag-aa-reset-default-amin-pass-tsk.html ). Note: If you are downgrading a previously upgraded build, then while downgrading use the backed up configuration file (ns.conf) of the earlier build to avoid this issue. 3. Users might fail to log in to the downgraded NetScaler appliance if the following sequence of conditions is met: You perform one of the following steps: After upgrading to the current build, you add a system user or change the password of an existing system user, and save the configuration. Provision a new VPX, BLX, or CPX instance with the current build. Downgrade the appliance to one of the following builds: 13.0-47.x or earlier 12.1-56.x or earlier 11.1-64.x or earlier To view the list of users affected after the downgrade, at the command prompt, type: `query ns config -changedpassword [-config <full path of the configuration file (ns.conf)>] ` Workaround: Reset the password of the affected users. For more information, see [How to reset root administrator (nsroot) password] ( https://docs.citrix.com/en-us/citrix-adc/13/system/ns-ag-aa-intro-wrapper-con/ns-ag-aa-reset-default-amin-pass-tsk.html ). Note: If you are downgrading a previously upgraded build, then while downgrading use the backed up configuration file (ns.conf) of the earlier build to avoid this issue. 4. Users might fail to log in to the downgraded NetScaler appliance if the following sequence of conditions is met: 1. You perform one of the following steps: After upgrading to the current build, you add a system user or change the password of an existing system user, and save the configuration. Provision a new VPX, BLX, or CPX instance with the current build. 2. Downgrade the appliance to one of the following builds: 13.0-47.x or earlier 12.1-56.x or earlier 11.1-64.x or earlier To view the list of users affected after the downgrade, at the command prompt, type: query ns config -changedpassword [-config <full path of the configuration file (ns.conf)>] Workaround: Reset the password of the affected users. For more information, see [How to reset root administrator (nsroot) password] ( https://docs.citrix.com/en-us/citrix-adc/13/system/ns-ag-aa-intro-wrapper-con/ns-ag-aa-reset-default-amin-pass-tsk.html ). *Note: *If you are downgrading a previously upgraded build, then while downgrading use the backed up configuration file (ns.conf) of the earlier build to avoid this issue. Modules: 1. User Interface Latest urls for this bug: 1. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=41.28 2. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=47.24 3. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=52.24 4. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=58.32 5. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=61.48 6. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=64.35 7. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=67.43 8. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=71.44 9. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=76.31 10. https://docs.netscaler.com/en-us/updates?product=NetScaler%20ADC%20%28includes%20NetScaler%20Gateway%29&version=13.0&build=79.64