CVE-2022-36344: An unquoted search path vulnerability exists in 'JustSystems JUST Online Update for J-License' bundled with mu

This month

CRITICAL 9.8REMOTEMITIGATEMITIGATEMITIGATE

CVE-2022-36344 is a critical-severity flaw (CVSS 9.8) affecting atok medical 2, atok medical 3, atok pro 3. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An unquoted search path vulnerability exists in 'JustSystems JUST Online Update for J-License' bundled with multiple products for corporate users as in Ichitaro through Pro5 and others. Since the affected product starts another program with an unquoted file path, a malicious file may be executed with the privilege of the Windows service if it is placed in a certain path. Affected products are bundled with the following product series: Office and

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-428
Published	2022-08-16
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: justsystems

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-08-16 08:15 UTCPublished CVE record published
2026-06-17 04:53 UTCUpdated Record last modified

justsystems atok medical 2 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy atok-medical-2 || rpm -q atok-medical-2 || atok-medical-2 --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

justsystems atok medical 3 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy atok-medical-3 || rpm -q atok-medical-3 || atok-medical-3 --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

justsystems atok pro 3 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy atok-pro-3 || rpm -q atok-pro-3 || atok-pro-3 --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

justsystems atok pro 4 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy atok-pro-4 || rpm -q atok-pro-4 || atok-pro-4 --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

justsystems atok pro 5 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy atok-pro-5 || rpm -q atok-pro-5 || atok-pro-5 --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

justsystems hanako police 5 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy hanako-police-5 || rpm -q hanako-police-5 || hanako-police-5 --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-36344?

atok medical 2: mitigate or apply the listed mitigation; atok medical 3: mitigate or apply the listed mitigation; atok pro 3: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-36344 being exploited?

CVE-2022-36344 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-36344 affect?

CVE-2022-36344 affects atok medical 2, atok medical 3, atok pro 3. Severity is critical (CVSS 9.8). An unquoted search path vulnerability exists in 'JustSystems JUST Online Update for J-License' bundled with multiple products for corporate users as in Ichitaro through Pro5 and others. Since the affected product starts another program with

How urgent is CVE-2022-36344?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities

References

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