CVE-2023-22336: Path traversal vulnerability in SS1 Ver.13.0.0.40 and earlier and Rakuraku PC Cloud Agent Ver.2.1.8 and earlie

Q: How do I fix CVE-2023-22336?

rakuraku pc cloud agent: upgrade to newer than 2.1.8; ss1: upgrade to newer than 13.0.0.40. Exact commands for each OS are on this page.

Q: Is CVE-2023-22336 being exploited?

CVE-2023-22336 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-2023-22336 affect?

CVE-2023-22336 affects rakuraku pc cloud agent, ss1. Severity is critical (CVSS 9.8). Path traversal vulnerability in SS1 Ver.13.0.0.40 and earlier and Rakuraku PC Cloud Agent Ver.2.1.8 and earlier allows a remote attacker to upload a specially crafted file to an arbitrary directory. As a result of exploiting this vulnerabil

Q: How urgent is CVE-2023-22336?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADEUPGRADE

CVE-2023-22336 is a critical-severity flaw (CVSS 9.8) affecting rakuraku pc cloud agent, ss1. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Path traversal vulnerability in SS1 Ver.13.0.0.40 and earlier and Rakuraku PC Cloud Agent Ver.2.1.8 and earlier allows a remote attacker to upload a specially crafted file to an arbitrary directory. As a result of exploiting this vulnerability with CVE-2023-22335 and CVE-2023-22344 vulnerabilities together, it may allow a remote attacker to execute an arbitrary code with SYSTEM privileges by sending a specially crafted script to the affected devi

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	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-22
Published	2023-03-06
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: dos-osaka

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

Am I affected?

Timeline

2023-03-06 00:15 UTCPublished CVE record published
2026-06-17 05:35 UTCUpdated Record last modified

dos-osaka rakuraku pc cloud agent UPGRADE

Affected: <= 2.1.8

Fixed in: newer than 2.1.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rakuraku-pc-cloud-agent || rpm -q rakuraku-pc-cloud-agent || rakuraku-pc-cloud-agent --version

2. UPGRADE to newer than 2.1.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rakuraku-pc-cloud-agent

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rakuraku-pc-cloud-agent

Note

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

dos-osaka ss1 UPGRADE

Affected: <= 13.0.0.40

Fixed in: newer than 13.0.0.40

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ss1 || rpm -q ss1 || ss1 --version

2. UPGRADE to newer than 13.0.0.40 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ss1

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ss1

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-2023-22336?

rakuraku pc cloud agent: upgrade to newer than 2.1.8; ss1: upgrade to newer than 13.0.0.40. Exact commands for each OS are on this page.

Is CVE-2023-22336 being exploited?

CVE-2023-22336 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-2023-22336 affect?

CVE-2023-22336 affects rakuraku pc cloud agent, ss1. Severity is critical (CVSS 9.8). Path traversal vulnerability in SS1 Ver.13.0.0.40 and earlier and Rakuraku PC Cloud Agent Ver.2.1.8 and earlier allows a remote attacker to upload a specially crafted file to an arbitrary directory. As a result of exploiting this vulnerabil

How urgent is CVE-2023-22336?

Priority 56/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-22344 CRITICAL 9.8 UPGRADE UPGRADE Use of hard-coded credentials vulnerability in SS1 Ver.13.0.0.40 and earlier and Rakuraku PC Cloud Agent Ver.2
CVE-2023-22335 HIGH 7.5 UPGRADE UPGRADE Improper access control vulnerability in SS1 Ver.13.0.0.40 and earlier and Rakuraku PC Cloud Agent Ver.2.1.8 a

References

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