Is CVE-2026-3366 actively exploited?

No active exploitation of CVE-2026-3366 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3366 be exploited remotely?

Yes. CVE-2026-3366 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-3366?

CVE-2026-3366 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-3366

HIGH

CVE-2026-3366

CWE-22Published: May 27, 2026· Updated: Jun 2, 2026

7.5

CVSS v3.1

Official Description

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

NVD Source

Technical Analysis

CVE-2026-3366 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.