Firmware updates to fix security flaws for EOS 1D- and 5D-series

Canon has released the first wave of firmware updates to resolve the Picture Transfer Protocol security flaw identified in Wi-Fi enabled EOS cameras.

Firmware is available for the following cameras:

EOS 5D Mark III – version 1.3.6
EOS 5D Mark IV – version 1.2.1
EOS 5DS – version 1.1.3
EOS 5DS R – version 1.1.3
EOS-1D X – version 2.1.1
EOS-1D X Mark II – version 1.1.7

Updates for other affected Canon EOS cameras are expected to be released in due course.

These follow the firmware update already released for the EOS 80D DSLR camera.

Ensure that you read the instructions contained within the downloaded firmware update from the Canon UK website. For more information on how to install firmware, read the EOS magazine article.

More EOS firmware updates

Canon released a number of firmware updates in March 2024, as follows: EOS R3 – version 1.7.1 1. Enables servo zooming to be remotely controlled from EOS Utility or Camera Connect when Power Zoom Adapter PZ-E2/PZ-E2B is attached to a compatible lens. 2. Enables up to 2 TB to be used on CFexpress cards larger than 2 TB. 3. Fixes an issue that may cause the camera, in rare instances, to stop functioning when using GPS. 4. Fixes an issue that may display Error Code 70 when performing anti-flicker shooting at a shutter speed of 1 second or higher. 5. Enhances security for FTPS (File Transfer Protocol Security) connections. 6. Fixes an issue in which Mobile File Transfer may not function when connecting the camera to an iPhone compatible with USB 3.0 and higher. 7. Fixes an issue that, under specific circumstances, may prevent the image from being displayed in the viewfinder or on the screen causing the camera to stop operating, or Error Code 70 may be displayed. 8. Fixes minor issues. EOS

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