CVE-2022-36344

Privilege escalation via unquoted service launch path

Published Aug 16, 2022 · Updated Aug 3, 2024

Unquoted search path handling in JustSystems JUST Online Update for J-License allows local users to execute code with service privileges. The Windows service launches another program from an unquoted executable path, allowing a malicious file placed in a searched path segment to run. Exploitation requires local low-privileged access and permissive filesystem ACLs on a searched path, after which code runs with the service account privileges.

CVSS severity8.8
High
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unquoted search path handling in JustSystems JUST Online Update for J-License allows local users to execute code with service privileges. The Windows service launches another program from an unquoted executable path, allowing a malicious file placed in a searched path segment to run. Exploitation requires local low-privileged access and permissive filesystem ACLs on a searched path, after which code runs with the service account privileges.

The record

CVE
CVE-2022-36344
Published
Aug 16, 2022
Updated
Aug 3, 2024
Vendor
JustSystems
Product
JUST Online Update for J-License
Classifications
CWE-428, T1574.009
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=JustSystems JUST Online Update for J-License' bundled with multiple products for corporate users as in Ichitaro through Pro5 and others

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

JustSystems · JUST Online Update for J-Licenseversion=JustSystems JUST Online Update for J-License' bundled with multiple products for corporate users as in Ichitaro through Pro5 and others

Published CVSS scores

6.8JPCERT/CCAV:L/AC:L/Au:S/C:C/I:C/A:C
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8JPCERT/CCCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-428Unquoted Search Path or Element
T1574.009Path Interception by Unquoted Path

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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