CVE-2025-68383

Dec. 23, 2025, 5:59 p.m.

6.5
Medium

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.

Product(s) Impacted

Vendor Product Versions
Elastic
  • Filebeat
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-1284
Improper Validation of Specified Quantity in Input
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a elastic filebeat / / / / / / / /
a elastic filebeat / / / / / / / /
a elastic filebeat / / / / / / / /
a 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

Tags

security@elastic.co
2025-12-18
CVE-2025-68383

CVSS Score

6.5 / 10

CVSS Data - 3.1

  • Attack Vector: ADJACENT_NETWORK
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

    • CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

    View Vector String

Timeline

Published: Dec. 18, 2025, 10:16 p.m.
Last Modified: Dec. 23, 2025, 5:59 p.m.

Status : Analyzed

CVE has had analysis completed and all data associations made.

More info

Source

security@elastic.co

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.