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SmartIT Desktop Manager EUVDEUVD-2026-70871

| CVE-2026-85149 MEDIUM
Use of Hard-coded Credentials (CWE-798)
2026-09-04 twcert GHSA-gmh4-cmc7-776h
6.9
CVSS 4.0 · Vendor: twcert
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain SmartIT Agent binary or source
  2. Delivery
    Extract hardcoded SFTP credentials via static analysis
  3. Exploit
    Identify hosts running SmartIT Agent
  4. Execution
    Connect to SFTP service using hardcoded credentials
  5. Impact
    Browse victim host file system

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Credential externalization
MITRE ATT&CK

2 techniques across 2 tactics: Persistence, Credential Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires that the target host is running the SmartIT Agent component of SmartIT Desktop Manager with its SFTP service active and reachable over the network. The attacker must first obtain the hard-coded credentials, which involves access to the application source code or a copy of the distributed binary for offline static analysis. Once credentials are in hand, no further authentication or user interaction is needed against the target. Exploitation is limited to file system read access (browsing) and does not extend to write operations or code execution based on the current description. Non-default firewall rules that restrict the SFTP port to trusted hosts would block remote exploitation.

Impact

The CVSS 4.0 base score of 6.9 with vector AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N reflects network accessibility with no privileges required, but the vulnerable-system confidentiality is only 'Low' - consistent with read-only file system browsing rather than full data exfiltration or code execution. The PR:N rating is justified because the hardcoded credentials are universally applicable and discoverable from source, effectively eliminating the credential barrier. No public exploit has been identified, and this CVE does not appear in CISA KEV. EPSS data is absent from the input, so exploitation probability cannot be quantified. Realistic priority is moderate: the attack requires an adversary to obtain and analyze the application binary or source, then identify and reach the SFTP port on a target host. Defenders should weigh that while the CVSS implies trivial exploitation once credentials are known, credential extraction itself adds a small but real barrier compared to a zero-credential vulnerability.

Exploit ScenarioDerived

An attacker downloads the SmartIT Desktop Manager installer or obtains the SmartIT Agent binary, then extracts the hardcoded SFTP credentials through static analysis or source inspection. Using a standard SFTP client with those credentials, the attacker connects directly to the SFTP port of any target host running the SmartIT Agent and navigates the file system to locate sensitive files such as configuration files, credentials stores, or user documents. No public proof-of-concept code has been identified, but the technique requires only common reverse-engineering tooling.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 04, 2026

Hard-coded SFTP credentials embedded in SmartIT Desktop Manager (by Lightstar) allow unauthenticated remote attackers to extract credentials from application source code and authenticate directly to the SmartIT Agent's SFTP service, enabling arbitrary file system browsing on the victim host. The vulnerability is CVSS 4.0-scored at 6.9 with no-privilege, network-accessible exploitation, though real-world impact is limited to read-only directory traversal rather than full compromise. No public exploit code and no CISA KEV listing have been identified at time of analysis.

RemediationAI

The primary remediation is to apply any vendor-released patch from Lightstar that removes the hard-coded credentials and replaces them with per-deployment generated or administrator-configured SFTP credentials. No exact patched version is specified in the available advisory data - consult the TWCERT advisories at https://www.twcert.org.tw/en/cp-139-11177-13ca3-2.html for vendor guidance. As a compensating control prior to patching, restrict network access to the SFTP port used by SmartIT Agent via host-based firewall rules so that only trusted management systems can reach it; this eliminates the remote attack vector but does not fix the underlying credential issue. Additionally, rotating or replacing SFTP credentials through any available configuration mechanism - if the product supports it - would neutralize the hardcoded pair without waiting for a full patch. Operators should audit SFTP access logs for unauthorized connections that may indicate prior exploitation.

Affected VersionsENISA

SmartIT Desktop Manager 0 ≤10

Affected Packages

euvd smartit_desktop_manager no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-798 (Use of Hard-coded Credentials) describes embedding authentication secrets directly in application source code or compiled binaries, where they are recoverable by anyone who can inspect the artifact. Here, the SmartIT Agent component - part of the SmartIT Desktop Manager platform developed by Lightstar (CPE: cpe:2.3:a:lightstar:smartit_desktop_manager) - exposes a local SFTP service whose credentials are statically defined in source code. Because these credentials are identical across all deployments, recovering them from one installation (or from publicly accessible source) grants SFTP access to any other instance. SFTP provides authenticated file-system access at the OS level, making the credential pair a skeleton key against the file system of any host running the agent.

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Severity by source

Vendor (twcert) PRIMARY 6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
vuln.today AI 5.3 MEDIUM

Network-reachable SFTP with recoverable hardcoded credentials (PR:N, AC:L); impact limited to read-only file browsing (C:L, I:N, A:N).

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

Primary rating from Vendor (twcert).

CVSS VectorVendor: twcert

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

DescriptionCVE.org

SmartIT Desktop Manager developed by Lightstar has a Use of Hard-coded Credentials vulnerability. Unauthenticated remote attackers can obtain the SFTP service credentials of the SmartIT Agent application from the source code, thereby browsing the file system of the user's host.

Threat Intelligence Overview

EPSS Score
0.2%
Top 84% exploitable
Prevalence
Low
niche vendor desktop management product, Taiwan CERT-reported
Social Media
1
Sightings
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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