CVE-2026-21718

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 v3 10.0 CRITICAL

10.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json	Third Party Advisory
https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate	Product
https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:copeland:xweb_300d_pro_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:copeland:xweb_300d_pro:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:copeland:xweb_500d_pro_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:copeland:xweb_500d_pro:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:copeland:xweb_500b_pro_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:copeland:xweb_500b_pro:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-27 01:16

Updated : 2026-02-27 23:11

NVD link : CVE-2026-21718

Mitre link : CVE-2026-21718

CVE.ORG link : CVE-2026-21718

JSON object : View

Products Affected

copeland

xweb_300d_pro
xweb_300d_pro_firmware
xweb_500b_pro_firmware
xweb_500b_pro
xweb_500d_pro_firmware
xweb_500d_pro

CWE

CWE-327

Use of a Broken or Risky Cryptographic Algorithm

NVD-CWE-noinfo

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