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ICS File Transfer EUVDEUVD-2026-76749

| CVE-2026-90444 HIGH
OS Command Injection (CWE-78)
2026-09-11 ics-cert@hq.dhs.gov GHSA-3mw7-4727-j55f
8.7
CVSS 4.0 · Vendor: hq
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Severity by source

Vendor (hq) PRIMARY
8.7 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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
vuln.today AI
8.8 HIGH

Network-accessible with low-privilege auth required (PR:L); no scope change as impact is confined to the vulnerable service process.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (hq).

CVSS VectorVendor: hq

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Sep 11, 2026 - 22:32 vuln.today
CVE Published
Sep 11, 2026 - 22:16 cve.org
HIGH 8.7

DescriptionCVE.org

A file-transfer interface that requires valid credentials accepts attacker-controlled filenames without restricting shell metacharacters. An automated process later constructs and runs a system command using the uploaded file's name, allowing an authenticated attacker to embed and execute arbitrary operating system commands with the privileges of that process. This allows an attacker to read and modify ingested log data, and could provide a foothold for further movement within the internal network.

AnalysisAI

OS command injection via filename manipulation in an ICS file-transfer interface allows authenticated network attackers to execute arbitrary commands with the privileges of an automated processing service. The flaw, tracked under ICSA-26-254-01 and reported by CISA ICS-CERT, affects a log-ingestion workflow where attacker-supplied filenames containing shell metacharacters are passed unsanitized to a system call. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires valid credentials for the file-transfer interface (PR:L in the CVSS vector confirms at least low-privilege authentication is necessary). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 8.7 (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H) accurately reflects the threat profile: network-accessible, low complexity, and requiring only standard user credentials. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation The primary remediation is to apply the vendor-supplied patch referenced in CISA advisory ICSA-26-254-01; exact patched version numbers must be retrieved from the CSAF advisory document as they were not included in the provided metadata. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, confirm whether your organization operates this ICS file-transfer system and isolate affected systems from untrusted networks if feasible. …

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EUVD-2026-76749 vulnerability details – vuln.today

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