CVE-2025-68383

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.

CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-1284 CWE-1284

Affected Products

Vendor	Product	Versions
elastic	filebeat	7.0.0 — 7.17.29
elastic	filebeat	8.0.0 — 8.19.9
elastic	filebeat	9.0.0 — 9.1.9
elastic	filebeat	9.2.0 — 9.2.3

References

Advisories & Patches

https://discuss.elastic.co/t/filebeat-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-32/384180

Frequently Asked Questions

What is CVE-2025-68383? +

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. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-68383? +

CVE-2025-68383 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-68383? +

CVE-2025-68383 affects products from elastic, specifically: filebeat. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-68383? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-41100

Incorrect authentication vulnerability in ParkingDoor. Through this vulnerability it is possible to operate the device without the access being logged …

CVE-2024-6768

A Denial of Service in CLFS.sys in Microsoft Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, and Windows …

CVE-2025-8424

Improper access control on the NetScaler Management Interface in NetScaler ADC and NetScaler Gateway when an attacker can get access …

CVE-2025-5808

Improper Input Validation vulnerability in OpenText Self Service Password Reset allows Authentication Bypass.This issue affects Self Service Password Reset from …

CVE-2025-9316

N-central < 2025.4 can generate sessionIDs for unauthenticated users This issue affects N-central: before 2025.4.

CVE-2025-48507

The security state of the calling processor into Trusted Firmware (TF-A) is not used and could potentially allow non-secure processors …