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.
Scores
CVSS v3
6.5
EPSS
0.0007
EPSS Percentile
20.4%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1284
Status
published
Products (3)
elastic/beats
0Go
elastic/beats
7.7.0 - 8.19.9Go
elastic/filebeat
7.0.0 - 7.17.29
Published
Dec 18, 2025
Tracked Since
Feb 18, 2026