CVE-2026-26050

Administrator code execution via same-directory DLL loading

Published Feb 20, 2026 · Updated Feb 20, 2026

Uncontrolled DLL loading in the RICOH ジョブログ集計ツール installer before 1.3.7 allows local users to execute code as administrator. The installer searches its own directory before trusted Windows locations and loads a same-named DLL placed beside it without validating its origin. Exploitation requires a crafted DLL to share the installer's directory and an administrator to launch the installer, after which the DLL runs with installation privileges.

CVSS severity8.4
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled DLL loading in the RICOH ジョブログ集計ツール installer before 1.3.7 allows local users to execute code as administrator. The installer searches its own directory before trusted Windows locations and loads a same-named DLL placed beside it without validating its origin. Exploitation requires a crafted DLL to share the installer's directory and an administrator to launch the installer, after which the DLL runs with installation privileges.

The record

CVE
CVE-2026-26050
Published
Feb 20, 2026
Updated
Feb 20, 2026
Vendor
Ricoh Company, Ltd.
Product
RICOH ジョブログ集計ツール
Classifications
CWE-427, T1574.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 20, 2026Record 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=versions prior to Ver.1.3.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Ricoh Company, Ltd. · RICOH ジョブログ集計ツールversion=versions prior to Ver.1.3.7

Published CVSS scores

8.4JPCERT/CCCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8JPCERT/CCCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.002DLL Side-Loading

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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