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EPSS 0.4%top 69%

An unauthenticated remote attacker can inject malicious input into the ModbusServer application because it does not validate the input it fetches… (CVE-2026-44092)

0
High
Published: 07/30/2026 (07/30/2026, 09:31:17 UTC)
Source: GCVE Database

Description

CVE-2026-44092 is a vulnerability in the ModbusServer application where unauthenticated remote attackers can inject malicious input due to lack of input validation from MQTT sources. This flaw can lead to loss of data integrity and availability within the affected application.

CVSS v4.0

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
None
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
Scope
X
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/30/2026, 20:07:30 UTC

Technical Analysis

The ModbusServer application fails to validate input fetched from MQTT, allowing an unauthenticated remote attacker to inject malicious data. This vulnerability is categorized under CWE-93 (Improper Neutralization of CRLF Sequences in HTTP Headers), indicating potential injection issues. The impact includes potential integrity and availability loss of the application. There is no information about affected versions or available patches. The vulnerability is not related to a cloud service, and no known exploits are reported in the wild.

Potential Impact

An attacker can remotely inject malicious input without authentication, potentially compromising the integrity and availability of the ModbusServer application. This could disrupt normal operations or corrupt data handled by the application.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the ModbusServer application and monitor for unusual activity related to MQTT input. Implement network-level controls to limit exposure to untrusted sources if possible.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-hf79-46vv-6v3g
Osv Schema Version
1.4.0
Aliases
["CVE-2026-44092"]
Ecosystems
[]
Database Specific Severity
HIGH
Cvss Version
4.0

Threat ID: 6a6b72bb9c2644c7f8473cc2

Added to database: 07/30/2026, 15:50:19 UTC

Last enriched: 07/30/2026, 20:07:30 UTC

Last updated: 07/31/2026, 03:32:00 UTC

Views: 2

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