What is the CVSS score of CVE-2025-29477?

CVE-2025-29477 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:H. EPSS exploitation probability: 0.1%.

Which versions of Fluent Bit are affected by CVE-2025-29477?

CVE-2025-29477 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-2025-29477?

Yes, a public proof-of-concept exploit is available for CVE-2025-29477. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-29477?

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-2025-29477

MEDIUM

Uncontrolled Resource Consumption (CWE-400)

2025-04-04 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:H/PR:L/UI:R/S:U/C:L/I:L/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:35 vuln.today

PoC Detected

Dec 08, 2025 - 18:47 vuln.today

Public exploit code

CVE Published

Apr 04, 2025 - 18:15 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 function consume_event.

AnalysisAI

An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via the function consume_event. Rated medium severity (CVSS 5.5). 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 function consume_event. 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-2025-29477 vulnerability details – vuln.today

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