CVE-2026-3366: IBM InfoSphere Optim Test Data Fabrication 1.0.0, 1.0.0.1, 1.0.0.2, 1.0.2, 1.0.2.2, 1.0.2.3, 1.0.2.4, 1.0.2.5,

This month

HIGH 7.5REMOTEDOWNGRADE

CVE-2026-3366 is a high-severity flaw (CVSS 7.5) affecting infosphere optim test data fabrication. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM InfoSphere Optim Test Data Fabrication 1.0.0, 1.0.0.1, 1.0.0.2, 1.0.2, 1.0.2.2, 1.0.2.3, 1.0.2.4, 1.0.2.5, 1.0.2.6, 1.0.2.7 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system

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	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-05-27
Last modified	2026-10-26

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-27 14:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

ibm infosphere optim test data fabrication DOWNGRADE

Affected: 1.0.0 · 1.0.0.1 · 1.0.0.2 · 1.0.2 · 1.0.2.2 · 1.0.2.3 · 1.0.2.4 · 1.0.2.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy infosphere-optim-test-data-fabrication || rpm -q infosphere-optim-test-data-fabrication || infosphere-optim-test-data-fabrication --version

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison infosphere-optim-test-data-fabrication sudo apt install infosphere-optim-test-data-fabrication=<VERSION_BEFORE_1.0.0> sudo apt-mark hold infosphere-optim-test-data-fabrication

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

dnf --showduplicates list infosphere-optim-test-data-fabrication sudo dnf downgrade infosphere-optim-test-data-fabrication-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add infosphere-optim-test-data-fabrication

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-2026-3366?

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

Is CVE-2026-3366 being exploited?

CVE-2026-3366 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-2026-3366 affect?

CVE-2026-3366 affects infosphere optim test data fabrication. Severity is high (CVSS 7.5). IBM InfoSphere Optim Test Data Fabrication 1.0.0, 1.0.0.1, 1.0.0.2, 1.0.2, 1.0.2.2, 1.0.2.3, 1.0.2.4, 1.0.2.5, 1.0.2.6, 1.0.2.7 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted

How urgent is CVE-2026-3366?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

References

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