CVE-2025-68383

Improper Validation of Specified Index, Position, or Offset in Input (CWE-1285) in Filebeat Syslog parser and the Libbeat Dissect processor can allow a user to trigger a Buffer Overflow (CAPEC-100) and cause a denial of service (panic/crash) of the Filebeat process via either a malformed Syslog message or a malicious tokenizer pattern in the Dissect configuration.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/filebeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-32/384180	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:elastic:filebeat::::::::
	cpe:2.3:a:elastic:filebeat::::::::
	cpe:2.3:a:elastic:filebeat::::::::
	cpe:2.3:a:elastic:filebeat::::::::

History

23 Dec 2025, 17:59

Type	Values Removed	Values Added
CPE		cpe:2.3:a:elastic:filebeat::::::::
First Time		Elastic Elastic filebeat
References	~~() https://discuss.elastic.co/t/filebeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-32/384180 -~~	() https://discuss.elastic.co/t/filebeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-32/384180 - Vendor Advisory

18 Dec 2025, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-18 22:16

Updated : 2025-12-23 17:59

NVD link : CVE-2025-68383

Mitre link : CVE-2025-68383

CVE.ORG link : CVE-2025-68383

JSON object : View

Products Affected

elastic

filebeat

CWE

CWE-1284

Improper Validation of Specified Quantity in Input

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