CVE-2026-21718 Details
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.
An authentication bypass vulnerability has been identified in Copeland XWEB Pro versions through 1.12.1. This vulnerability allows attackers to bypass authentication requirements and execute arbitrary code on the affected system without prior authentication.
Copeland has released a patch for this vulnerability. Users are advised to update XWEB Pro to the latest version available. Instructions for updating can be found on the Copeland Software Update page, or users can update directly from Copeland servers via the SYSTEM -- Updates | Network menu.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 2, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json | [email protected] | Third Party Advisory |
| https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate | [email protected] | Product |
| https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10 | [email protected] | Third Party AdvisoryUS Government Resource |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
| CWE-327 | Use of a Broken or Risky Cryptographic Algorithm | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| copeland xweb 300d pro firmware | <= 1.12.1 |
CPE
Remediation
| |
| copeland xweb 300d pro | All versions |
CPE
Remediation
| |
| copeland xweb 500d pro firmware | <= 1.12.1 |
CPE
Remediation
| |
| copeland xweb 500d pro | All versions |
CPE
Remediation
| |
| copeland xweb 500b pro firmware | <= 1.12.1 |
CPE
Remediation
| |
| copeland xweb 500b pro | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 27, 2026 | Initial Analysis | [email protected] |
| Feb 27, 2026 | New CVE Received | [email protected] |