What is CVE-2024-4323?

CVE-2024-4323 is a critical-severity vulnerability in Fluent Bit, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2024-05-20.

How severe is CVE-2024-4323?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2024-4323 known to be exploited?

7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Fluent Bit

CVE-2024-4323

A memory corruption vulnerability in Fluent Bit versions 2.0.7 thru 3.0.3. This issue lies in the embedded http server’s parsing of trace requests and may result in denial of service conditions, information disclosure, or remote code execu…

Vulnerability class: Buffer Overflow

EPSS: 0.846 (99.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Fluent Bit — versions 2.0.7

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-4323?: CVE-2024-4323 is a critical-severity vulnerability in Fluent Bit, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2024-05-20.
How severe is CVE-2024-4323?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-4323 known to be exploited?: 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.