CVE-2025-68383
December 18, 2025
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.
Affected Packages
https://github.com/elastic/beats.git (GITHUB):
Affected version(s) >=v9.2.0 <v9.2.3Fix Suggestion:
Update to version v9.2.3https://github.com/elastic/beats.git (GITHUB):
Affected version(s) >=v7.7.0 <v8.19.9Fix Suggestion:
Update to version v8.19.9https://github.com/elastic/beats.git (GITHUB):
Affected version(s) >=v9.1.0 <v9.1.9Fix Suggestion:
Update to version v9.1.9github.com/elastic/beats/v7 (GO):
Affected version(s) >=v0.1.0 <v7.0.0-alpha2.0.20251204214633-dd3af18220bfFix Suggestion:
Update to version v7.0.0-alpha2.0.20251204214633-dd3af18220bfgithub.com/elastic/beats/v7 (GO):
Affected version(s) >=v7.7.0 <v8.19.9Fix Suggestion:
Update to version v8.19.9Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
ADJACENT
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
EPSS
Base Score:
0.06
