Authentication Bypass in Copeland XWEB Pro by Emerson
CVE-2026-25085

8.6HIGH

Key Information:

Vendor

Copeland

Status
Copeland Xweb 300d Pro
Copeland Xweb 500d Pro
Copeland Xweb 500b Pro
Vendor
CVE Published:
27 February 2026

What is CVE-2026-25085?

A vulnerability in Copeland XWEB Pro software allows an attacker to bypass authentication mechanisms due to an unexpected return value from the authentication process. This misinterpretation of an invalid response as a legitimate one can lead to unauthorized access, compromising the security of the system. Users of version 1.12.1 and earlier should immediately assess their systems and apply necessary updates to mitigate potential risks.

Affected Version(s)

Copeland XWEB 300D PRO 0 <= 1.12.1

Copeland XWEB 500B PRO 0 <= 1.12.1

Copeland XWEB 500D PRO 0 <= 1.12.1

References

https://webapps.copeland.com/Dixell/Pages/SystemSoftwareU...
https://www.cisa.gov/news-events/ics-advisories/icsa-26-0...
https://github.com/cisagov/CSAF/blob/develop/csaf_files/O...

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Amir Zaltzman and Noam Moshe of Claroty Team82 reported this vulnerability to CISA.
.