RCE in Copeland Xweb 300d Pro
CVE-2026-20764
An OS command injection vulnerability exists in XWEB Pro version 1.12.1 and prior, enabling an authenticated attacker to achieve remote code execution on the system by providing malicious input via the device hostname configuration which is later processed during system setup, resulting in remote code execution.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.020 · change: +0.001
Affected products
Weakness classification (CWE)
References
- webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate (Product)
- www.cisa.gov/news-events/ics-advisories/icsa-26-057-10 (US Government Resource, Third Party Advisory)
- github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.js… (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-20764?
- CVE-2026-20764 is a high-severity vulnerability in Copeland Xweb 300d Pro, classified under OS Command Injection. CVSS score: 8.0/10. Published 2026-02-27.
- How severe is CVE-2026-20764?
- High severity. CVSS v3 base score is 8.0 out of 10.