Which versions of Opensearch are affected by CVE-2025-9624?

Organizations using A vulnerability in OpenSearch face notable risk from CVE-2025-9624 rated CVSS 8.3.. A patch is available.

Is there a public PoC exploit available for CVE-2025-9624?

Yes, a public proof-of-concept exploit is available for CVE-2025-9624. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-9624?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Opensearch CVE-2025-9624

Q: What is the CVSS score of CVE-2025-9624?

CVE-2025-9624 has a CVSS 4.0 base score of 8.3 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/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: 0.0%.

HIGH

Uncontrolled Recursion (CWE-674)

2025-11-25 help@fluidattacks.com

Denial Of Service Opensearch

8.3

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

8.3 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/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:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/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

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 19:23 vuln.today

PoC Detected

Dec 15, 2025 - 14:15 vuln.today

Public exploit code

CVE Published

Nov 25, 2025 - 20:16 nvd

HIGH 8.3

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

58 maven packages depend on org.opensearch:opensearch-common (11 direct, 47 indirect)

Ecosystem-wide dependent count for version 3.0.0.

DescriptionCVE.org

A vulnerability in OpenSearch allows attackers to cause Denial of Service (DoS) by submitting complex query_string inputs.

This issue affects all OpenSearch versions between 3.0.0 and < 3.3.0 and OpenSearch < 2.19.4.

AnalysisAI

A vulnerability in OpenSearch allows attackers to cause Denial of Service (DoS) by submitting complex query_string inputs.0.0 and < 3.3.0 and OpenSearch < 2.19.4. Rated high severity (CVSS 8.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-674. A vulnerability in OpenSearch allows attackers to cause Denial of Service (DoS) by submitting complex query_string inputs.0.0 and < 3.3.0 and OpenSearch < 2.19.4. Affected products include: Amazon Opensearch.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.