CVE-2025-3078Network attack vector

Administrative credential disclosure via SMTP and LDAP passback

Published May 19, 2025 · Updated May 20, 2025

Credential exposure in Canon production printers and office multifunction printers allows remote authenticated users to obtain SMTP and LDAP secrets. The passback flaw exposes authentication information configured for outbound SMTP and LDAP connections, but Canon has not published the affected function or exact triggering request. Administrative privileges on the device are required, and the reported consequence is access to connected mail or directory services without device data loss or interruption.

CVSS severity6.3
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Canon production printers and office multifunction printers allows remote authenticated users to obtain SMTP and LDAP secrets. The passback flaw exposes authentication information configured for outbound SMTP and LDAP connections, but Canon has not published the affected function or exact triggering request. Administrative privileges on the device are required, and the reported consequence is access to connected mail or directory services without device data loss or interruption.

The record

CVE
CVE-2025-3078
Published
May 19, 2025
Updated
May 20, 2025
Vendor
Canon Inc.
Product
imagePRESS Series
Classifications
CWE-522, T1212
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 19, 2025CVE publishedPublication date reported by the CVE source.
  2. May 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=all version

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Canon Inc. · imagePRESS Seriesversion=all version
Canon Inc. · imageCLASS Seriesversion=all version
Canon Inc. · imageRUNNER ADVANCE Seriesversion=all version
Canon Inc. · imageRUNNER Seriesversion=all version
Canon Inc. · imagePRESS V Seriesversion=all version

Published CVSS scores

8.7Canon Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
6.3Canon Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1212Exploitation for Credential Access

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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