Which versions of Java are affected by CVE-2026-3066?

Organizations using HummerRisk should be aware of moderate risk from CVE-2026-3066, a injection vulnerability rated CVSS 6.3.

Is there a public PoC exploit available for CVE-2026-3066?

Yes, a public proof-of-concept exploit is available for CVE-2026-3066. Prioritise patching immediately. EPSS: 0.4%.

Java CVE-2026-3066

Q: What is the CVSS score of CVE-2026-3066?

CVE-2026-3066 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.4%.

LOW

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2026-02-24 cna@vuldb.com

Java Command Injection

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.3 (MEDIUM) 2.1 (LOW)

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 24, 2026 - 21:05 vuln.today

Public exploit code

CVE Published

Feb 24, 2026 - 04:15 nvd

MEDIUM 6.3

DescriptionCVE.org

A flaw has been found in HummerRisk up to 1.5.0. This vulnerability affects the function fixedCommand of the file hummer-common/hummer-common-core/src/main/java/com/hummer/common/core/utils/PlatformUtils.java of the component Cloud Compliance Scanning. Executing a manipulation can lead to command injection. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Hummerrisk versions up to 1.5.0. contains a vulnerability that allows attackers to command injection (CVSS 6.3).

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Vulnerability AssessmentAI

Risk Assessment	CVSS 6.3 (MEDIUM). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A remote attacker could exploit this vulnerability to command injection.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 30 days: Identify affected systems running HummerRisk and apply vendor patches as part of regular patch cycle. …

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CVE-2026-3066 vulnerability details – vuln.today

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