What is CVE-2025-68388?

CVE-2025-68388 is a medium-severity vulnerability in Elastic Packetbeat, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2025-12-18.

How severe is CVE-2025-68388?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Resource exhaustion in Elastic Packetbeat

CVE-2025-68388

Allocation of resources without limits or throttling (CWE-770) allows an unauthenticated remote attacker to cause excessive allocation (CAPEC-130) of memory and CPU via the integration of malicious IPv4 fragments, leading to a degradation in Packetbeat.

Published 2025-12-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.004 (32.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.001

Affected products

Elastic Packetbeat — versions 8.6.0, 9.0.0, 9.2.0
Elasticsearch Packetbeat

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

discuss.elastic.co/t/packetbeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025… (Vendor Advisory)

Frequently asked questions

What is CVE-2025-68388?: CVE-2025-68388 is a medium-severity vulnerability in Elastic Packetbeat, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2025-12-18.
How severe is CVE-2025-68388?: Medium severity. CVSS v3 base score is 5.3 out of 10.