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CVE-2025-68383— Filebeat Improper Validation of Specified Index, Position, or Offset in Input

Quick assessment

Affected
Elastic Filebeat
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Elastic Filebeat是荷兰Elastic公司的用于转发和集中日志数据的轻量级数据探针。 Elastic Filebeat存在安全漏洞，该漏洞源于输入验证不当，可能导致缓冲区溢出和拒绝服务。

CVSS 6.5 · Medium EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth
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I. Basic Information for CVE-2025-68383

Vulnerability Information
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Vulnerability Title
Filebeat Improper Validation of Specified Index, Position, or Offset in Input
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1284
Source: CVE Program / CVE List V5
Vulnerability Title
Elastic Filebeat 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic Filebeat是荷兰Elastic公司的用于转发和集中日志数据的轻量级数据探针。 Elastic Filebeat存在安全漏洞，该漏洞源于输入验证不当，可能导致缓冲区溢出和拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Elastic Filebeat 7.0.0 ~ 7.17.29 -

II. Public POCs for CVE-2025-68383

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III. Intelligence Information for CVE-2025-68383

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Other References for CVE-2025-68383 (1)

Same Patch Batch · Elastic · 2025-12-18 · 11 CVEs total

CVE-2025-68385 7.2 HIGH Kibana Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'
CVE-2025-68381 6.5 MEDIUM Packetbeat Improper Bounds Check
CVE-2025-68382 6.5 MEDIUM Packetbeat Out-of-bounds Read
CVE-2025-68384 6.5 MEDIUM Elasticsearch Allocation of Resources Without Limits or Throttling
CVE-2025-68389 6.5 MEDIUM Kibana Allocation of Resources Without Limits or Throttling
CVE-2025-68387 6.1 MEDIUM Kibana Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'
CVE-2025-68388 5.3 MEDIUM Elastic Packetbeat 安全漏洞
CVE-2025-68390 4.9 MEDIUM Elasticsearch Allocation of Resources Without Limits or Throttling
CVE-2025-68386 4.3 MEDIUM Kibana Improper Authorization
CVE-2025-68422 4.3 MEDIUM Kibana Improper Authorization

IV. Related Vulnerabilities

Same product: Filebeat
Same vendor: Elastic
Same weakness: CWE-1284

V. Comments for CVE-2025-68383

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