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CVE-2023-0857

23
FAUCET Score

CVE-2023-0857 describes an unintentional settings change during initial registration of system administrators on specific Canon Office/Small Office Multifunction Printers and Laser Printers, including models from the Satera, Color imageCLASS, and i-SENSYS series with firmware version 11.04 and earlier. This high-severity vulnerability (CVSS 7.5) allows an unauthenticated attacker on the network segment to gain unauthorized access to the product, leading to high integrity impact without requiring user interaction. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 11.04CPE matchmatch criteria
cpe:2.3:o:canon:mf642cdw_firmware:*:*:*:*:*:*:*:*
<= 11.04CPE matchmatch criteria
cpe:2.3:o:canon:mf644cdw_firmware:*:*:*:*:*:*:*:*
<= 11.04CPE matchmatch criteria
cpe:2.3:o:canon:mf741cdw_firmware:*:*:*:*:*:*:*:*
<= 11.04CPE matchmatch criteria
cpe:2.3:o:canon:mf743cdw_firmware:*:*:*:*:*:*:*:*
<= 11.04CPE matchmatch criteria
cpe:2.3:o:canon:mf745cdw_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 22nd percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

canon.jp / support/support-info/230414vulnerability-response
psirt.canon / advisory-information/cp2023-001
canon-europe.com / support/product-security-latest-news
usa.canon.com / support/canon-product-advisories/Service-Notice-Vulnerabilities-Remediation-Against-Buffer-Overflow