CVE-2026-20797

MEDIUM

4.3

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.

CVE Details

CVSS v3.1 Score4.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack VectorADJACENT_NETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/27/2026

Last Modified2/27/2026

Sourcenvd

Honeypot Sightings0

Affected Products

copeland:xweb_300d_procopeland:xweb_300d_pro_firmwarecopeland:xweb_500b_procopeland:xweb_500b_pro_firmwarecopeland:xweb_500d_procopeland:xweb_500d_pro_firmware

Weaknesses (CWE)

CWE-787

References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json(ics-cert@hq.dhs.gov)

https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate(ics-cert@hq.dhs.gov)

https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10(ics-cert@hq.dhs.gov)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.