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CVE-2024-12647

30
FAUCET Score

CVE-2024-12647 is a critical buffer overflow vulnerability (CWE-787) affecting Canon Small Office Multifunction Printers and Laser Printers, specifically models such as the Satera MF656Cdw/MF654Cdw, Color imageCLASS MF656Cdw/MF654Cdw/MF653Cdw/MF652Cdw/LBP633Cdw/LBP632Cdw, and i-SENSYS MF657Cdw/MF655Cdw/MF651Cdw/LBP633Cdw/LBP631Cdw with firmware v05.04 and earlier. This vulnerability, rated 9.8 CRITICAL (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), allows an unauthenticated attacker on the same network segment to trigger a denial of service or execute arbitrary code by exploiting a flaw in CPCA font download processing. 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
<= 05.04CPE matchmatch criteria
cpe:2.3:o:canon:mf455dw_firmware:*:*:*:*:*:*:*:*
<= 05.04CPE matchmatch criteria
cpe:2.3:o:canon:mf453dw_firmware:*:*:*:*:*:*:*:*
<= 05.04CPE matchmatch criteria
cpe:2.3:o:canon:mf452dw_firmware:*:*:*:*:*:*:*:*
<= 05.04CPE matchmatch criteria
cpe:2.3:o:canon:mf451dw_firmware:*:*:*:*:*:*:*:*
<= 05.04CPE matchmatch criteria
cpe:2.3:o:canon:mf465dw_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.18%
Probability of exploitation in next 30 days
EPSS Percentile
64.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0118 is in the 50th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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/250127vulnerability-response
Vendor Advisory
psirt.canon / advisory-information/cp2025-001
Vendor Advisory
canon-europe.com / support/product-security
Vendor Advisory
usa.canon.com / support/canon-product-advisories/service-notice-regarding-vulnerability-measure-against-buffer-overflow-for-laser-printers-and-small-office-multifunctional-printers
Vendor Advisory