CVE-2026-26050
π TL;DR
This vulnerability allows attackers to execute arbitrary code with administrative privileges by exploiting insecure DLL loading in the RICOH job log aggregation tool installer. It affects users running versions prior to 1.3.7 of the software. The attack requires local access to place malicious DLLs in specific directories.
π» Affected Systems
- RICOH job log aggregation/analysis software (RICOHγΈγ§γγγ°ιθ¨γγΌγ«)
β οΈ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
π Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
β οΈ Risk & Real-World Impact
Worst Case
Full system compromise with administrative privileges, allowing installation of persistent malware, data theft, and lateral movement within the network.
Likely Case
Local privilege escalation leading to unauthorized administrative access on affected systems, potentially enabling further attacks.
If Mitigated
Limited impact if proper access controls prevent unauthorized users from placing files in installer directories.
π― Exploit Status
DLL hijacking attacks are well-understood and relatively simple to execute given local access to place malicious files.
π οΈ Fix & Mitigation
β Official Fix
Patch Version: Ver.1.3.7
Vendor Advisory: https://support.ricoh.com/bbv2/html/dr_ut_d/ut/history/w/bb/pub_j/dr_ut_d/4101031/4101031555/V137/5260588/260588/history.htm
Restart Required: Yes
Instructions:
1. Download version 1.3.7 from Ricoh's official support site. 2. Uninstall previous versions. 3. Install version 1.3.7. 4. Restart the system.
π§ Temporary Workarounds
Restrict installer directory permissions
windowsSet strict permissions on directories where the installer runs to prevent unauthorized users from placing DLL files.
icacls "C:\Program Files\RICOH\γΈγ§γγγ°ιθ¨γγΌγ«" /deny Users:(OI)(CI)W
Use application whitelisting
windowsConfigure Windows Defender Application Control or similar to only allow signed DLLs to load.
π§― If You Can't Patch
- Remove the software from affected systems if not essential.
- Implement strict access controls to prevent unauthorized users from accessing installer directories.
π How to Verify
Check if Vulnerable:
Check the software version in Control Panel > Programs and Features. If version is below 1.3.7, the system is vulnerable.Check Version:
wmic product where name="RICOHγΈγ§γγγ°ιθ¨γγΌγ«" get versionVerify Fix Applied:
Verify installed version is 1.3.7 or higher in Control Panel > Programs and Features.π‘ Detection & Monitoring
Log Indicators:
- Windows Event Logs showing DLL loading from unexpected locations
- Process Monitor logs showing DLL search order hijacking
Network Indicators:
- No direct network indicators - this is a local privilege escalation vulnerability
SIEM Query:
EventID=4688 AND (ProcessName LIKE "%RICOH%" OR ProcessName LIKE "%γΈγ§γγγ°%") AND CommandLine CONTAINS "DLL"