How severe is CVE-2025-29478?

CVE-2025-29478 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-29478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-29478?

CVE-2025-29478 affects Treasuredata Fluent Bit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-29478?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-29478 have an EU (EUVD) identifier?

Yes. CVE-2025-29478 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10313.

When was CVE-2025-29478 published?

CVE-2025-29478 was published on 2025-04-07 and last updated on 2026-06-17.

CVE-2025-29478

CVE-2025-29478 is a medium-severity vulnerability in Treasuredata Fluent Bit with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-10313
Weakness: CWE-400
Affected product: Treasuredata Fluent Bit
Published: 2025-04-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-29478?: 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.
How severe is CVE-2025-29478?: CVE-2025-29478 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-29478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-29478?: CVE-2025-29478 affects Treasuredata Fluent Bit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-29478?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-29478 have an EU (EUVD) identifier?: Yes. CVE-2025-29478 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10313.
When was CVE-2025-29478 published?: CVE-2025-29478 was published on 2025-04-07 and last updated on 2026-06-17.

References

https://github.com/lmarch2/poc/blob/main/fluent-bit/fluent-bit.md

Affected products (1)

cpe:2.3:a:treasuredata:fluent_bit:-:*:*:*:*:*:*:*

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