CVE-2023-37405: IBM Cloud Pak System 2.3.3.0, 2.3.3.3, 2.3.3.3 iFix1, 2.3.3.4, 2.3.3.5, 2.3.3.6, 2.3.36 iFix1, 2.3.3.6 iFix2,

Routine

MEDIUM 6.5DOWNGRADEDOWNGRADE

CVE-2023-37405 is a medium-severity flaw (CVSS 6.5) affecting cloud pak system, cloud pak system software suite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Cloud Pak System 2.3.3.0, 2.3.3.3, 2.3.3.3 iFix1, 2.3.3.4, 2.3.3.5, 2.3.3.6, 2.3.36 iFix1, 2.3.3.6 iFix2, 2.3.3.7, 2.3.3.7 iFix1, 2.3.4.0, and 2.3.4.1 stores sensitive data in memory, that could be obtained by an unauthorized user.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-311
Published	2025-03-27
Last modified	2026-06-17

Publisher (CNA): IBM Corporation · Vendor: ibm

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

Am I affected?

Timeline

2025-03-27 18:17 UTCPublished CVE record published
2026-06-17 06:08 UTCUpdated Record last modified

ibm cloud pak system DOWNGRADE

Affected: 2.3.1.1 · 2.3.3.0 · 2.3.3.3 · 2.3.3.3 ifix1 · 2.3.3.4 · 2.3.3.5 · 2.3.3.6 · 2.3.3.6 ifix1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.3.1.1

1. Check installed version

apt-cache policy cloud-pak-system || rpm -q cloud-pak-system || cloud-pak-system --version

2. No fixed release: DOWNGRADE to a release before 2.3.1.1 (Debian / Ubuntu)

apt-cache madison cloud-pak-system sudo apt install cloud-pak-system=<VERSION_BEFORE_2.3.1.1> sudo apt-mark hold cloud-pak-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list cloud-pak-system sudo dnf downgrade cloud-pak-system-<VERSION_BEFORE_2.3.1.1> sudo dnf versionlock add cloud-pak-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

ibm cloud pak system software suite DOWNGRADE

Affected: 2.3.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.3.2.0

1. Check installed version

apt-cache policy cloud-pak-system-software-suite || rpm -q cloud-pak-system-software-suite || cloud-pak-system-software-suite --version

2. No fixed release: DOWNGRADE to a release before 2.3.2.0 (Debian / Ubuntu)

apt-cache madison cloud-pak-system-software-suite sudo apt install cloud-pak-system-software-suite=<VERSION_BEFORE_2.3.2.0> sudo apt-mark hold cloud-pak-system-software-suite

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list cloud-pak-system-software-suite sudo dnf downgrade cloud-pak-system-software-suite-<VERSION_BEFORE_2.3.2.0> sudo dnf versionlock add cloud-pak-system-software-suite

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2023-37405?

cloud pak system: downgrade or apply the listed mitigation; cloud pak system software suite: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-37405 being exploited?

CVE-2023-37405 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-2023-37405 affect?

CVE-2023-37405 affects cloud pak system, cloud pak system software suite. Severity is medium (CVSS 6.5). IBM Cloud Pak System 2.3.3.0, 2.3.3.3, 2.3.3.3 iFix1, 2.3.3.4, 2.3.3.5, 2.3.3.6, 2.3.36 iFix1, 2.3.3.6 iFix2, 2.3.3.7, 2.3.3.7 iFix1, 2.3.4.0, and 2.3.4.1 stores sensitive data in memory, that could be obtained by an unauthorized user.

How urgent is CVE-2023-37405?

Priority 26/100. No elevated risk signals yet.

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References

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