CVE-2026-20797

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

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 02:16

Updated : 2026-06-17 10:17

NVD link : CVE-2026-20797

Mitre link : CVE-2026-20797

CVE.ORG link : CVE-2026-20797

JSON object : View

Products Affected

copeland

xweb_500b_pro
xweb_500d_pro_firmware
xweb_500d_pro
xweb_300d_pro_firmware
xweb_300d_pro
xweb_500b_pro_firmware

CWE

CWE-787

Out-of-bounds Write

CWE-121

Stack-based Buffer Overflow

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