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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-2mj3-6grc-px38 Filebeat Beats has Buffer Overflow via Malformed Syslog Message or Malicious Tokenizer Pattern in Dissect Configuration
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 23 Dec 2025 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:elastic:filebeat:*:*:*:*:*:*:*:*

Fri, 19 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 19 Dec 2025 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Elastic
Elastic filebeat
Vendors & Products Elastic
Elastic filebeat

Thu, 18 Dec 2025 22:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Filebeat Improper Validation of Specified Index, Position, or Offset in Input
Weaknesses CWE-1284
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: elastic

Published:

Updated: 2025-12-19T15:15:02.819Z

Reserved: 2025-12-16T17:26:09.355Z

Link: CVE-2025-68383

cve-icon Vulnrichment

Updated: 2025-12-19T15:14:53.383Z

cve-icon NVD

Status : Analyzed

Published: 2025-12-18T22:16:02.387

Modified: 2025-12-23T17:59:26.973

Link: CVE-2025-68383

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-19T09:15:38Z

Weaknesses