Buffer Overflow Vulnerability in Packetbeat by Elastic
CVE-2025-68381

6.5MEDIUM

Key Information:

Vendor

Elastic
Status
Packetbeat
Vendor
CVE Published:
18 December 2025

What is CVE-2025-68381?

An improper bounds check in Packetbeat may allow remote attackers to exploit a buffer overflow vulnerability, leading to application crashes or significant resource exhaustion. This can be achieved by sending a single crafted UDP packet featuring an invalid fragment sequence number, making it critical for users to update their systems to prevent potential disruptions.

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Deploy the Patch

Affected Version(s)

Packetbeat 7.0.0 <= 7.17.29

Packetbeat 8.0.0 <= 8.19.8

Packetbeat 9.0.0 <= 9.1.8

References

https://discuss.elastic.co/t/packetbeat-8-19-9-9-1-9-and-...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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