CVE-2026-1789Network attack vector

Administrator-only disclosure via crafted Remote UI requests

Published Apr 23, 2026 · Updated Apr 23, 2026

Information disclosure in Canon printer Remote UI allows remote authenticated users with administrator privileges to read device data. Canon has not disclosed which Remote UI handler or security-decision input mishandles crafted requests; documented output includes address-book data. Exploitation requires device-administrator credentials and exposes stored information without reported modification or service interruption.

CVSS severity6.9
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Canon printer Remote UI allows remote authenticated users with administrator privileges to read device data. Canon has not disclosed which Remote UI handler or security-decision input mishandles crafted requests; documented output includes address-book data. Exploitation requires device-administrator credentials and exposes stored information without reported modification or service interruption.

The record

CVE
CVE-2026-1789
Published
Apr 23, 2026
Updated
Apr 23, 2026
Vendor
Canon Inc.
Product
imageFORCE Series
Classifications
CWE-807, T1213
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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. · imageFORCE Seriesversion=all version
Canon Inc. · imageCLASS X MF1538C IIversion=v16.04 or earlier
Canon Inc. · Satera MF7525Fversion=v15.00 or earlier
Canon Inc. · MF842Cxversion=v16.04 or earlier
Canon Inc. · Satera MF7625Fversion=v8.12 or earlier
Canon Inc. · Satera MF7725Fversion=v16.04 or earlier
Canon Inc. · imagePRESS Seriesversion=all version
Canon Inc. · MF842Cdwversion=v16.04 or earlier
Canon Inc. · imageCLASS X C1538iF IIversion=v16.04 or earlier
Canon Inc. · C1533iF IIversion=v16.04 or earlier
Canon Inc. · imageRUNNER ADVANCE Seriesversion=all version
Canon Inc. · C1538iF IIversion=v16.04 or earlier
Canon Inc. · imageRUNNER Seriesversion=all version

Published CVSS scores

6.9Canon Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
4.9Canon Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-807Reliance on Untrusted Inputs in a Security Decision
T1213Data from Information Repositories

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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