High severity · published Dec 6, 2021
CVE-2021-43471
In Canon LBP223 printers, the System Manager Mode login does not require an account password or PIN
7.5
CVSS
1.5%
EPSS
No
On KEV
Description
In Canon LBP223 printers, the System Manager Mode login does not require an account password or PIN. An attacker can remotely shut down the device after entering the background, creating a denial of service vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LF
Lbp223dw Firmware · Canon
All versions, or not specified · source: NVD