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Xweb 300d Pro Firmware CVE-2026-3037

HIGH
OS Command Injection (CWE-78)
2026-02-27 ics-cert@hq.dhs.gov
RCE Command Injection Xweb 300d Pro Firmware Xweb 500b Pro Firmware Xweb 500d Pro Firmware Copeland
8.0
CVSS 3.1 · NVD
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Attack ChainAIDerived

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

  1. Access
    Authenticate as high-privilege user
  2. Delivery
    Access utility route in XWEB Pro
  3. Exploit
    Inject malicious OS commands into MBird SMS service URL parameter
  4. Execution
    System processes input during setup
  5. Impact
    Execute arbitrary commands with elevated privileges

Vulnerability Assessment

Weakness
CWE
CWE-78
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK

2 techniques across 1 tactic: Execution

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

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Exploitation Conditions

Authenticated access to XWEB Pro version 1.12.1 or prior with high-privilege account credentials. Attacker must have existing valid user authentication to access the utility route. MBird SMS service integration must be configured in system setup.
Impact

CVSS 8.0 (HIGH). Attack vector: Network. Complexity: High. Privileges required: High. User interaction: None. Exploitation requires authentication. Exploitable via remote/network.
Exploit ScenarioDerived

A remote attacker (requires authentication) could exploit this flaw, remote code execution.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Remote code execution in XWEB Pro firmware (versions 1.12.1 and earlier) allows authenticated attackers to execute arbitrary OS commands by injecting malicious payloads into the MBird SMS service URL parameters processed during system setup. The vulnerability affects Xweb 500d Pro, 500b Pro, and 300d Pro models, with no patch currently available. Exploitation requires high privilege access but carries high impact due to complete system compromise potential.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:55 CVSS 8.0

An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker to achieve remote code execution on the system by modifying malicious input injected into the MBird SMS service URL and/or code via the utility route which is later processed during system setup, leading to remote code execution. [CVSS 8.0 HIGH]

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affects your stack

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Technical ContextAI · show details

Classified as CWE-78 (OS Command Injection). Affects Xweb 300D Pro Firmware. An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker to achieve remote code execution on the system by modifying malicious input injected into the MBird SMS service URL and/or code via the utility route which is later processed during system setup, leading to remote code execution.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 8.0 HIGH
AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker to achieve remote code execution on the system by modifying malicious input injected into the MBird SMS service URL and/or code via the utility route which is later processed during system setup, leading to remote code execution.

Executive ViewAI

Why It Matters

XWEB Pro versions 1.12.1 and earlier contain a critical command injection vulnerability that allows authenticated users to execute arbitrary code on affected systems. This poses an immediate risk to organizations running vulnerable versions, as attackers with legitimate credentials could gain complete system control and potentially compromise sensitive data or business operations.

Business Impact: High
Compensating Controls

Restrict administrative access to XWEB Pro through network segmentation and IP whitelisting. Disable the MBird SMS service module if operationally feasible. Implement Web Application Firewall (WAF) rules to block malicious input patterns in the utility route and SMS service URL parameters. Enable enhanced logging and monitoring of the affected service for suspicious authentication and command patterns. Enforce multi-factor authentication for all XWEB Pro administrative accounts.

Threat Intelligence Overview

EPSS Score
0.1%
Top 66% exploitable
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS GitHub

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 HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +40
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS Command Injection CRITICAL

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:o:copeland:xweb_300d_pro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:copeland:xweb_500d_pro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:copeland:xweb_500b_pro_firmware:*:*:*:*:*:*:*:*

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References

Advisories & patches
REF https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json REF https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate REF https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10

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