CVE-2022-42496: OS command injection vulnerability in Nako3edit, editor component of nadesiko3 (PC Version) v3.3.74 and earlie

Q: How do I fix CVE-2022-42496?

nadesiko3: upgrade to newer than 3.3.74. Exact commands for each OS are on this page.

Q: Is CVE-2022-42496 being exploited?

CVE-2022-42496 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-42496 affect?

CVE-2022-42496 affects nadesiko3. Severity is critical (CVSS 9.8). OS command injection vulnerability in Nako3edit, editor component of nadesiko3 (PC Version) v3.3.74 and earlier allows a remote attacker to obtain appkey of the product and execute an arbitrary OS command on the product.

Q: How urgent is CVE-2022-42496?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2022-42496 is a critical-severity flaw (CVSS 9.8) affecting nadesiko3. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OS command injection vulnerability in Nako3edit, editor component of nadesiko3 (PC Version) v3.3.74 and earlier allows a remote attacker to obtain appkey of the product and execute an arbitrary OS command on the product.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-78
Published	2022-12-05
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2022-12-05 04:15 UTCPublished CVE record published
2026-06-17 05:05 UTCUpdated Record last modified

kujirahand nadesiko3 UPGRADE

Affected: <= 3.3.74

Fixed in: newer than 3.3.74

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy nadesiko3 || rpm -q nadesiko3 || nadesiko3 --version

2. UPGRADE to newer than 3.3.74 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nadesiko3

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nadesiko3

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2022-42496?

nadesiko3: upgrade to newer than 3.3.74. Exact commands for each OS are on this page.

Is CVE-2022-42496 being exploited?

CVE-2022-42496 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-2022-42496 affect?

CVE-2022-42496 affects nadesiko3. Severity is critical (CVSS 9.8). OS command injection vulnerability in Nako3edit, editor component of nadesiko3 (PC Version) v3.3.74 and earlier allows a remote attacker to obtain appkey of the product and execute an arbitrary OS command on the product.

How urgent is CVE-2022-42496?

Priority 60/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-41777 HIGH 7.5 UPGRADE Improper check or handling of exceptional conditions vulnerability in Nako3edit, editor component of nadesiko3
CVE-2022-41642 CRITICAL 9.8 UPGRADE OS command injection vulnerability in Nadesiko3 (PC Version) v3.3.61 and earlier allows a remote attacker to e

References

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