CVE-2024-56468: IBM InfoSphere Data Replication VSAM for z/OS Remote Source 11.4 could allow a remote user to cause a denial o

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HIGH 7.5REMOTEDOWNGRADE

CVE-2024-56468 is a high-severity flaw (CVSS 7.5) affecting infosphere data replication. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM InfoSphere Data Replication VSAM for z/OS Remote Source 11.4 could allow a remote user to cause a denial of service by sending an invalid HTTP request to the log reading service.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-121
Published	2025-07-08
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

2025-07-08 23:15 UTCPublished CVE record published
2026-06-17 08:12 UTCUpdated Record last modified

ibm infosphere data replication DOWNGRADE

Affected: 11.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.4.0

1. Check installed version

apt-cache policy infosphere-data-replication || rpm -q infosphere-data-replication || infosphere-data-replication --version

2. No fixed release: DOWNGRADE to a release before 11.4.0 (Debian / Ubuntu)

apt-cache madison infosphere-data-replication sudo apt install infosphere-data-replication=<VERSION_BEFORE_11.4.0> sudo apt-mark hold infosphere-data-replication

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

dnf --showduplicates list infosphere-data-replication sudo dnf downgrade infosphere-data-replication-<VERSION_BEFORE_11.4.0> sudo dnf versionlock add infosphere-data-replication

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-2024-56468?

infosphere data replication: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-56468 being exploited?

CVE-2024-56468 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-2024-56468 affect?

CVE-2024-56468 affects infosphere data replication. Severity is high (CVSS 7.5). IBM InfoSphere Data Replication VSAM for z/OS Remote Source 11.4 could allow a remote user to cause a denial of service by sending an invalid HTTP request to the log reading service.

How urgent is CVE-2024-56468?

Priority 40/100. High severity; Remotely exploitable, no login, no user action

References

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