CVE-2026-20797

critical

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.

References

Advisories
More

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

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

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

Details

Source: Mitre, NVD

Published: 2026-02-27

Updated: 2026-02-27

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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