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.
Published: 2025-12-18
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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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
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'}


Subscriptions

Elastic Filebeat
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