CVE-2026-25085

Copeland XWEB and XWEB Pro Unexpected Status Code or Return Value

Published Feb 27, 2026 CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Description
A vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, in
which an unexpected return value from the authentication routine is
later on processed as a legitimate value, resulting in an authentication
bypass.

Remediation

Vendor Solution

Copeland has provided a fix for the vulnerabilities and recommends users update the XWEB Pro to the latest version by going to their software update page https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate in the sections dedicated to the different XWEBPRO models page.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Copeland xweb 300d Pro
Copeland xweb 300d Pro Firmware
Copeland xweb 500b Pro
Copeland xweb 500b Pro Firmware
Copeland xweb 500d Pro
Copeland xweb 500d Pro Firmware
CPEs cpe:2.3:h:copeland:xweb_300d_pro:-:*:*:*:*:*:*:*
cpe:2.3:h:copeland:xweb_500b_pro:-:*:*:*:*:*:*:*
cpe:2.3:h:copeland:xweb_500d_pro:-:*:*:*:*:*:*:*
cpe:2.3:o:copeland:xweb_300d_pro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:copeland:xweb_500b_pro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:copeland:xweb_500d_pro_firmware:*:*:*:*:*:*:*:*
Vendors & Products Copeland xweb 300d Pro
Copeland xweb 300d Pro Firmware
Copeland xweb 500b Pro
Copeland xweb 500b Pro Firmware
Copeland xweb 500d Pro
Copeland xweb 500d Pro Firmware
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Copeland
Copeland copeland Xweb 300d Pro
Copeland copeland Xweb 500b Pro
Copeland copeland Xweb 500d Pro
Vendors & Products Copeland
Copeland copeland Xweb 300d Pro
Copeland copeland Xweb 500b Pro
Copeland copeland Xweb 500d Pro
Type Values Removed Values Added
Description A vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, in which an unexpected return value from the authentication routine is later on processed as a legitimate value, resulting in an authentication bypass.
Title Copeland XWEB and XWEB Pro Unexpected Status Code or Return Value
Weaknesses CWE-394
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L'}