A stack based buffer overflow exists in an API route of XWEB Pro version
1.12.1 and prior, enabling unauthenticated attackers to cause stack
corruption and a termination of the program.
Advisories

No advisories yet.

Fixes

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.


Workaround

No workaround given by the vendor.

History

Mon, 02 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 27 Feb 2026 23:15:00 +0000

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
Weaknesses CWE-787
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

Fri, 27 Feb 2026 09:15:00 +0000

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

Fri, 27 Feb 2026 01:30:00 +0000

Type Values Removed Values Added
Description A stack based buffer overflow exists in an API route of XWEB Pro version 1.12.1 and prior, enabling unauthenticated attackers to cause stack corruption and a termination of the program.
Title Copeland XWEB and XWEB Pro Stack-based Buffer Overflow
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-03-02T14:25:33.427Z

Reserved: 2026-02-05T16:47:16.578Z

Link: CVE-2026-20797

cve-icon Vulnrichment

Updated: 2026-03-02T14:25:29.811Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-27T02:16:18.343

Modified: 2026-02-27T23:10:35.547

Link: CVE-2026-20797

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-27T09:02:53Z

Weaknesses