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Xweb 300d Pro Firmware CVE-2026-23702

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 to XWEB Pro API
  2. Exploit
    Access import preconfiguration action
  3. Execution
    Inject OS commands into server username field
  4. Impact
    Execute arbitrary commands as system user

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 user account with access to XWEB Pro v1.12.1 or prior API V1 import preconfiguration endpoint; requires valid credentials and high-privilege user role to access the vulnerable functionality.
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 vulnerability to compromise the affected system.
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 (affecting Xweb 500b Pro, 500d Pro, and 300d Pro models) allows authenticated attackers to execute arbitrary OS commands by injecting malicious input into the server username field during the import preconfiguration API action. An attacker with administrative privileges can exploit this OS command injection vulnerability to gain complete system compromise. No patch is currently available for this vulnerability.

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 sending malicious input injected into the server username field of the import preconfiguration action in the API V1 route. [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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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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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 sending malicious input injected into the server username field of the import preconfiguration action in the API V1 route.

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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 sending malicious input injected into the server username field of the import preconfiguration action in the API V1 route.

Executive ViewAI

Why It Matters

XWEB Pro versions 1.12.1 and earlier contain a critical remote code execution vulnerability that allows authenticated users to execute arbitrary commands on affected servers. This poses an immediate risk to organizations using this software, as a compromised account could lead to full system compromise and data breach.

Business Impact: High
Compensating Controls

Implement Web Application Firewall (WAF) rules to block malicious payloads in the server username field of the import preconfiguration API endpoint; restrict API V1 access through network segmentation to authorized administrators only; disable the import preconfiguration feature if operationally feasible; enforce principle of least privilege for API authentication; implement robust logging and alerting on the vulnerable endpoint; consider disabling XWEB Pro until patch availability.

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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