CVE-2026-21718

CRITICAL10.0

Copeland XWEB and XWEB Pro Use of a Broken or Risky Cryptographic Algorithm

Published Feb 27, 2026

Modified 2 days ago

Details

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.

References

WEB

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json

WEB

https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate

WEB

https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-21718

CVSS Analysis

CVSS v3.1

10.0

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

ChangedS:C

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

10/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness Type (CWE)

Cryptography

CWE-327

Broken Crypto Algorithm

Ecosystems

Timeline

PublishedFeb 27, 2026

ModifiedMar 2, 2026

CVE-2026-21718 | Mondoo Vulnerability Intelligence