|Public Release Date:||3-February-2021|
The access control settings on a MX6500 may reset during a power on or reboot.
A rare condition exists while processing the state of the two security jumpers in an MX6500. This can cause occasional misreads of the security jumper state during boot, causing the device to incorrectly believe the security jumper state has changed. The result is that security access controls may be unexpectedly reset.
|CVSSv3 Base Score||4.6||(AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)|
CVSSv3 scores are calculated in accordance with CVSS version 3.1 (https://www.first.org/cvss/user-guide)
Successful exploitation of this vulnerability can lead to security access controls being reset to default values.
To determine a device's firmware level, select the Settings > Reports > Menu Setting Page menu item from the operator panel.
If the firmware level listed under Device Information matches any level under Affected Releases, then upgrade to a Fixed Release.
|Lexmark Models||Affected Releases||Fixed Releases|
|MX6500||LW75.JD.P296 and previous||LW75.JD.P297 and later|
Obtained Updated Software
To obtain firmware that resolves this issue or if you have special code, please contact Lexmark’s Technical
Support Center at http://support.lexmark.com to find your local support center.
Lexmark recommends a firmware update if your device has affected firmware.
Exploitation and Public Announcements
Lexmark is not aware of any malicious use against Lexmark products of the vulnerability described in this advisory.
Status of this Notice:
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND IS PROVIDED WITHOUT ANY EXPRESS OR IMPLIED GUARANTEE OR WARRANTY WHATSOEVER, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE OR PURPOSE. LEXMARK RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
This advisory is posted on Lexmark’s web site at http://support.lexmark.com/alerts
Future updates to this document will be posted on Lexmark’s web site at the same location.
|1.0||3 - February - 2021||Initial Public Release|