Elastic Filebeat up to 7.17.29/8.19.8/9.1.8/9.2.2 Syslog Parser improper validation of specified quantity in input

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Elastic Filebeat up to 7.17.29/8.19.8/9.1.8/9.2.2. This vulnerability affects unknown code of the component Syslog Parser. Such manipulation leads to improper validation of specified quantity in input. This vulnerability is listed as CVE-2025-68383. The attack must be carried out from within the local network. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Elastic Filebeat up to 7.17.29/8.19.8/9.1.8/9.2.2. Affected by this issue is an unknown code block of the component Syslog Parser. The manipulation with an unknown input leads to a improper validation of specified quantity in input vulnerability. Using CWE to declare the problem leads to CWE-1284. 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. Impacted is availability. CVE summarizes:

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.

The advisory is available at discuss.elastic.co. This vulnerability is handled as CVE-2025-68383 since 12/16/2025. The exploitation is known to be easy. Access to the local network is required for this attack. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 281874 (Elastic Beats filebeat 7.0.x < 8.19.9 / 9.0.x < 9.1.9 / 9.2.x 9.2.3 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (281874). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (elastic): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper validation of specified quantity in input
CWE: CWE-1284 / CWE-703
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 281874
Nessus Name: Elastic Beats filebeat 7.0.x < 8.19.9 / 9.0.x < 9.1.9 / 9.2.x 9.2.3 Multiple Vulnerabilities

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/16/2025 CVE reserved
12/19/2025 +3 days Advisory disclosed
12/19/2025 +0 days VulDB entry created
01/07/2026 +19 days VulDB entry last update

Sourcesinfo

Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2025-68383 (🔒)
GCVE (CVE): GCVE-0-2025-68383
GCVE (VulDB): GCVE-100-337538

Entryinfo

Created: 12/19/2025 08:07
Updated: 01/07/2026 05:31
Changes: 12/19/2025 08:07 (61), 01/07/2026 05:31 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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