CVE-2026-21718
Received
Received - Intake
Authentication Bypass in Copeland XWEB Pro Enables Pre-Auth Code Execution
Publication date: 2026-02-27
Last updated on: 2026-02-27
Assigner: ICS-CERT
Description
Description
An authentication bypass vulnerability exists in Copeland XWEB Pro
version 1.12.1 and prior, enabling any attackers to bypass the
authentication requirement and achieve pre-authenticated code execution
on the system.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| copeland | xweb_300d_pro_firmware | to 1.12.1 (inc) |
| copeland | xweb_500d_pro_firmware | to 1.12.1 (inc) |
| copeland | xweb_500b_pro_firmware | to 1.12.1 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-327 | The product uses a broken or risky cryptographic algorithm or protocol. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an authentication bypass in Copeland XWEB Pro version 1.12.1 and earlier. It allows attackers to bypass the authentication process entirely, enabling them to execute code on the system without needing to log in.
How can this vulnerability impact me? :
The impact of this vulnerability is severe. Attackers can gain pre-authenticated access to the system and execute arbitrary code, potentially leading to full system compromise, data theft, disruption of services, or further attacks within the network.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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