What is the CVSS score of CVE-2025-29478?

CVE-2025-29478 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Which versions of Fluent Bit are affected by CVE-2025-29478?

CVE-2025-29478 presents moderate security risk, a resource exhaustion vulnerability rated CVSS 5.5. Service availability could be impacted. Proof-of-concept code is publicly available.

Is there a public PoC exploit available for CVE-2025-29478?

Yes, a public proof-of-concept exploit is available for CVE-2025-29478. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-29478?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Fluent Bit CVE-2025-29478

MEDIUM

Uncontrolled Resource Consumption (CWE-400)

2025-04-07 cve@mitre.org

Denial Of Service Fluent Bit

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:35 vuln.today

PoC Detected

Dec 08, 2025 - 18:49 vuln.today

Public exploit code

CVE Published

Apr 07, 2025 - 20:15 nvd

MEDIUM 5.5

DescriptionCVE.org

An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via the cfl_list_size in cfl_list.h:165.

AnalysisAI

An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via the cfl_list_size in cfl_list.h:165. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via the cfl_list_size in cfl_list.h:165. Affected products include: Treasuredata Fluent Bit.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.

CVE-2025-29478 vulnerability details – vuln.today

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Fluent Bit CVE-2025-29478

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code