RCE in Copeland Xweb 300d Pro
CVE-2026-20742
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 injecting malicious input into requests sent to the templates route.
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: 0.015 (73.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: +0.000
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-2026-20742?
- CVE-2026-20742 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-2026-20742?
- High severity. CVSS v3 base score is 8.0 out of 10.