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HP LaserJet Pro M402 and M403 Series Firmware Enhancements andFix List for date code 20190712

• Corrected multiple vulnerabilities CVE-2004-0230,CVE-2019-6323, CVE-2019-6324, CVE-2019-6325, CVE-2019-6326,CVE-2019-6327, including potential security impact XSS, CSRF andPotential Buffer Overflow.
• Fixed the issue that printer may not get the trusted IP addressunder the 802.1x authentication network.
• Fixed the issue that no paper mismatch reported for somespecific paper sizes.

Instructions for the HP Color LaserJet Pro MFP M402-M403 series Flash Firmware Update using Mac OS X operating systems

Flash Firmware Update Notes:
• The Firmware Update Utility can use either a Network or USB connection to the printer.
• The HP MFP printer must be on and in a READY state as shown by the LCD display on the control panel and remain powered on during the entire firmware update process.
• Depending on the processor speed of your Mac, the firmware update process may complete on the printer before the update status progress bar in the flash firmware update utility on the Mac screen completes, this is normal.
• Once the update process has started, do not use your Mac for any other activity until the process is complete.
• Inform others connected to the product, both network and USB, to refrain from using the printer during the update period.
• Do not power cycle the product or the Mac until the firmware update process is complete.

Process:
1. Download the flash firmware updater file from HP.com to the Mac desktop.
2. Turn the printer off and then back on to clear main printer memory.
3. Double click on the flash firmware updater file. An HP firmware update window will open.
4. Select the appropriate MFP in the dialog window. If you assigned a different name to the HP MFP, choose the name that represents the correct printer.
5. Click on Send Firmware when ready to proceed.
6. The progress bar will begin to move to the right indicating information being transferred.
7. DO NOT power cycle the product or the Mac during this process or the product may become unstable and or unusable without further attention from HP. The flash firmware update can take up to 5 minutes to complete. Please be patient.
8. During the product flash firmware update, the display on the product control panel will display Erasing → Programming → Complete → Hewlett-Packard → Ready → Initializing → Ready. Once the download is finished the printer will be in the Ready state.
9. At the conclusion of the firmware update, the dialog window will show a smiley face. Click on exit.
10. The flash firmware update process is complete.

This utility is for use on the following Mac OS X:

• v10.5 Leopard
• v10.6 Snow Leopard
• v10.7 Lion
• v10.8 Mountain Lion
• v10.9 Mavericks
• v10.10 Yosemite